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For the increasing demand of city media resources, LED display’s vivid colors and sharp images which deliver amazing visual impact not only attract those passing by to maximize media value but also highlight the commercial value of media resources. AOTO has accumulated a wealth of experience in cooperation with top-class media companies and offers professional, cost-effective and complete advertising LED display solution. With leading image display technology, high quality service and excellent products, AOTO m6 advertising screen has been applied in New York Times Square, London Waterloo Station, London Olympics Torch Tower and other global top advertising locations, and these significant projects received high praise from customers and audiences.


Are you looking for active led display? AOTO will be your best choice!

8 Advantages of Lithium Polymer Batteries

lithium polymer batteries

Lithium polymer battery is a kind of lithium-ion battery, but it has obvious advantages over liquid lithium battery (with high energy density, more compact, ultra-thin, lightweight, and high safety and size), is a novel battery. Below we detail the advantages of lithium polymer batteries.

1. Good safety performance

Lithium polymer batteries are structured in soft aluminum-plastic packaging, which is different from the metal case of liquid batteries. Once a safety hazard occurs, the liquid batteries are liable to explode, and the lithium polymer batteries can only be inflated.

2. Can be made thinner

Ordinary liquid lithium batteries adopt the method of customizing the casing first and then plugging the positive and negative electrodes. The thickness is less than 3.6mm. There is a technical limitation. The lithium-polymer battery does not have this problem. The thickness can be less than 1mm(GREPOW ultra-thin battery can be 0.4mm in thickness), which meets the current mobile phone requirements.

thin battery

3. Lightweight

Batteries with polymer weights do not require a metal case as protective packaging. Lithium polymer batteries are 40% lighter than steel-case lithium batteries of the same capacity and 20% lighter than aluminum-case batteries.

4. Large capacity

Polymer batteries have a capacity 10 ~ 15% higher than steel-case batteries of the same size and specifications, and 5 ~ 10% higher than aluminum-case batteries. They have become the first choice for color screen mobile phones and MMS mobile phones. The newest color screen and MMS mobile phones currently on the market also Polymer batteries.

5. Small internal resistance

The internal resistance of lithium polymer batteries is smaller than that of ordinary liquid batteries. At present, the internal resistance of domestic polymer batteries can even be less than 35mΩ, which greatly reduces the self-power consumption of the battery and extends the standby time of the mobile phone. It is completely possible. Reached the level of international standards. This kind of polymer lithium battery that supports large discharge current is an ideal choice for remote control model, and it has become the most promising product to replace the nickel-metal hydride battery.

novel lithium polymer battery

6. The shape can be customized

Lithium polymer batteries can increase or decrease the cell thickness according to customer needs, develop new cell models, are cheap, have short mold opening cycles, and some can even be tailored to the shape of the cell phone to fully utilize the battery case space and enhance the battery capacity.

7.Good discharge characteristics

Lithium polymer batteries use colloidal electrolytes, which are subdivided into liquid electrolytes. Colloidal electrolytes have stable discharge characteristics and a higher discharge platform.

8.Simple protection plate design

Because of the use of polymer materials, the battery core does not ignite, does not explode, and the battery core itself has sufficient safety. Therefore, the protection circuit design of lithium polymer batteries can consider omitting PTC and fuses, thereby saving battery costs.

GREPOW specializes in custom, semi-custom, and off-the-shelf lithium polymer batteries. With over 20 years of customer service experience, Grepow has developed a very complete service system, specifically tailored for our customers, which helps us in better understanding your needs in the first step of our communication, in a highly time-efficient way.

If you are interested in our lithium polymer batteries, please don’t hesitate to contact us at any time!
Grepow Website:

Artificial Bush

Are you looking for a reliable fake tree manufacturer?

Beijing Palm International Group Ltd., offersartificial outdoor trees shrubs. Our products are grouped by different kinds of artificial trees shrubs, such as fern, banana tree, traveler palm, area palm and so on to satisfy customers‘ requirements . All artificial shrubs and trees are made of plastic, with UV-protection; some can be fire-proof.


As a professional artificial tree factory, Beijing Palm International Group Ltd., has over 20 years of experience in supplying high quality artificial bamboo and artificial outdoor plants and shrubs. The design and build of your artificial bush is all done in house by highly skilled craftsmen. We deliver all our products safely and securely .

Baby Splicing Mat Products, the State Lists it in the 3C Certification Catalogue

Recently, the reporter learned from the National Accreditation Regulatory Commission that infant splicing mat products were included in the compulsory product (CCC) certification scope.


Relevant manufacturers should implement the certification according to the implementation rules of CCC certification for toy products, and complete the certification by November 30, 2018. Since December 1, 2018, if the above products have not been certified by CCC, they shall not be discharged, sold, imported or used in other business activities.


This time, such products will be included in the 3C certification catalogue, aiming at ensuring the quality and safety of children’s products and safeguarding the legitimate rights and interests of consumers and production enterprises. According to the requirements of relevant regulations, all kinds of cushion products which are clearly labeled as „crawling pads“ in product or product packaging and product specifications, or not clearly labeled as „crawling pads“, but which explicitly implement the relevant GB6675 standards and are suitable for infants‘ crawling and playing, should meet the requirements of relevant toy products CCC Certification Implementation rules. If the relevant information mentioned in Article 1 is not clearly marked, but the product expressly applies to any age below 14 years old and has one of the following characteristics, it shall also meet the requirements of the relevant toy product CCC Certification Implementation rules. Firstly, the product has the function of splicing and playing, forming mats of different shapes through splicing for infants to play and crawl. Second, it does not have the function of splicing, but the product has cartoon patterns, and can be used for infants to play and crawl.


If you want to buy baby splicing mat, please find Yiwu Jietai Carpet Co., Ltd. with good quality. Excellent price! Good service! Welcome domestic and foreign purchasers to negotiate business!

Visual Inspection

With the combination of lighting, image and data processing, the visual inspection system can detect and monitor the production process and product appearance damage, which guarantees the high quality of products.Visual inspection has been wildly use in many fields such as automotive, low voltage electrical, hardware, precision electronics and other fields. With many years of experience and abundant professional knowledge, Yiheda can design a complete automated inspection equipment based on your needs.


Industrial automated visual inspection systems are produced in industrial automation. In modern industrial automation production, it involves a wide range of inspection, measurement and part identification applications, such as auto parts size inspection and automatic assembly integrity inspection, electronic assembly line component automatic positioning, beverage bottle cap printing quality inspection, bar code and character recognition on the product packaging. The common feature of this type of automated inspection machine is continuous mass production and high requirements for appearance quality. Usually this kind of work with high repetitiveness and intelligence can only be done by manual inspection. We often see hundreds or even thousands of inspection workers to perform this process behind the modern assembly line of some factories. While the factory adds huge labor costs and management costs, it still cannot guarantee 100% inspection pass rate, and today’s competition between enterprises has not allowed even 0.1% defects. In some cases, such as accurate and rapid measurement of small size, shape matching, color recognition, etc., it is impossible to continuously and stably perform with the human eye, and other physical quantity sensors are also difficult to use. At this time, people began to consider to combine computer’s rapidity, reliability, and reproducibility of the results with the highly intelligent and abstract capabilities of human vision, thus there is gradually forming a new discipline – Visual inspection.


Visual inspection is the science and technology that have research on using computers to simulate the macroscopic visual functions of living things. In layman’s terms, it is to use machines instead of human eyes to make measurements and judgments. Firstly, the CCD camera is used to convert the ingested target into an image signal, which is transmitted to a dedicated image processing system, and converted into a digitized signal according to pixel distribution, brightness, color and the like; the image system performs various operations on these signals to extract the characteristics of the target, such as: area, length, quantity, position, etc.: Finally, it output results according to preset tolerances and other conditions, such as: size, angle, offset, number, pass/fail, presence/absence, etc. Visual inspection is characterized by automation, objectivity, and non-contact. Visual inspection emphasizes recognition and judgment, as well as reliability in an industrial field environment compared to image processing systems in general.


Visual inspection is a fairly new and rapidly developing field of research. From the 1950s, people began to study the statistical pattern recognition of two-dimensional images. In the 1960s, Roberts began research on 3D Visual inspection. In the middle of 1970s, MIT Artificial Intelligence Lab officially opened the „Visual inspection“ course, and the research began to boom globally in the 1980s, Visual inspection has flourished, new concepts, new theories continue to emerge. Today, Visual inspection is still a very active area of research, with related disciplines include: image processing, computer graphics, pattern recognition, artificial intelligence, artificial neural networks, and more.


Dongguan Yiheda Automation Co.,Ltd, established in 2010, is an expert custom automation company, specializes in designing and manufacturing the custom automation solution to customers. If you are looking for China automatic production line, just contact us!

Automatic Welding

With the development automation technology, automatic welding technology is more advanced. automatic production equipment plays an important role in the application of various industries, and its application is expanding rapidly. In the modern industrial production, the mechanization and automation of the welding production process are the inevitable trends of the manufacturing industry. The automatic welding machine we provided, with more efficient, high welding precision and fast welding speed, can be widely used in many fields.


In the past 20 years, with the development of digital, automation, computer, mechanical design technology and the importance of welding quality, automatic welding has developed into an advanced manufacturing technology, and role automatic welding equipment plays in various industrial applications is more and more important, and the scope of application is expanding rapidly. In modern industrial production, the mechanization and automation of the welding production process is an inevitable trend in the modernization of the welding mechanism manufacturing industry.


According to the degree of automation, automated welding equipment can be divided into the following three categories:

  1. Rigid automated welding equipment Rigid automatic welding equipment can also be called primary automatic welding equipment, most of which are designed according to the principle of open loop control. Although the entire welding process is automatically completed by the welding equipment, the feedback of the welding parameters during the welding process cannot be closed-loop feedback system, and the possible deviations cannot be randomly corrected.


  1. Self-adaptive control automatic welding equipment The adaptively controlled welding equipment is a highly automated welding equipment, which is equipped with sensors and electronic detection lines, it can automatically guide and tracks the weld trajectory, and implements closed-loop feedback control of the main welding parameters. The entire welding process will be completed automatically according to preset procedures and process parameters.


Intelligent automatic welding equipment

It utilizes a variety of advanced sensing components such as vision sensors, tactile sensors, auditory sensors and laser scanners etc., and it makes uses of computer software systems, databases and expert systems with functions such as identification, judgment, real-time detection, calculation, automatic programming, welding parameters storage and the ability to automatically generate weld log files.


The composition of automatic welding system industrial electronics:

  1. Welding power supply, its output power and welding characteristics should be matched with the welding method to be used, and the interface connected with the main controller is installed.
  2. wire feeder and its control and speed control system, for the wire feeder with higher requirements on wire feed speed control accuracy, its control circuit should add speed feedback
  3. The welding machine head uses its moving mechanism, which consists of a welding machine head, a welding head support frame, a hanging type carriage, etc., and is used in a precision welding head mechanism. The drive system should adopt a servo motor equipped with an encoder.
  4. Weldment movement or displacement mechanism, such as welding roller frame, head and tail frame turning machine, rotary platform and positioner, etc., precision moving position mechanism should be equipped with servo motor drive
  5. weldment clamping mechanism
  6. The main controller, also known as the system controller, is mainly used for linkage control of each component, control of welding procedures, setting, adjustment and display of main welding parameters. Control functions such as troubleshooting and man-machine dialogue can be expanded as necessary.
  7. computer software, computer software commonly used in welding equipment includes: programming software, functional software, process software and expert systems, etc.
  8. welding head guiding or tracking mechanism, arc pressure automatic controller, welding gun yaw and monitoring system
  9. Auxiliary devices, such as wire feeding system, circulating water cooling system, flux recovery and conveying device, wire holder, cable hose, drag chain mechanism structure design and electrical control design these three parts.
  10. Welding robots, also known as robotic arms, are an important part of automated welding equipment. Its main tasks include: welding, cutting, thermal spraying, carrying etc..


Application and value of automatic welding equipment in all-position welding

First, the automatic welding equipment is applied in the all-position welding, and the welding execution part is driven by the rotary pair to flexibly and reasonably change the posture of the welding torch, which is beneficial to the all-position welding work. At the same time, the motor power can be reduced while driving the same welding actuator. In the application, it is better to install the sensor at the welding position on the final stage deceleration shaft to detect the position of the welding gun. With this installation method, the control precision obtained is relatively high. In addition, by means of this memory on the automatic welding equipment, the parameters of the welding process and the weld tracking control program are stored, and the welding process parameters are stored in the arc welding power source, so that the advantages of the arc welding power source are further exerted. Through the cooperation of the two, it effectively solves various quality problems that may occur in all-position automatic welding operations.


Secondly, the driving of the welding torch is carried out by means of a stepping motor (the stepping motor is an open-loop control element stepping motor part that converts the electric pulse signal into angular displacement or line displacement). The digital input pulse model is effectively converted into a rotary motion by this motor. The accuracy of the component itself is high, and there is neither drift problem nor problems such as accumulated error. The application of this component in all-position welding not only keeps the rotational speed unchanged, but also controls the frequency signal to be relatively stable, and the torch displacement is more accurate.


Thirdly, in the all-position welding operation, the welding head and the arc welding power source are organically combined, which not only can achieve the purpose of full-position automatic welding, but also can reduce the price of the automatic welding equipment to a certain extent. In this way, not only can automatic welding be achieved, also the semi-automatic welding can be carried out by means of the arc welding power sources and the utilization of the semi-automatic welding torches.


Automatic Assembly

Nowadays, automated assembly technology is gradually replacing the manual assembly, since it can reduce labor costs and improve production efficiency and product stability. Yiheda has wealth of experience in developing automated assembly machine for many industries, such as automotive, low voltage electrical, hardware, precision electronics and other industries, we can provide customers with complete automation solutions with a short delivery. The assembly cycle time and precision can be adjusted according to the customer’s needs, thus the performance of the equipment can be maximized.


What are the assembly machine functions of the automatic assembly machine?

  1. The components of the automation assembly equipment are orientedly aligned, conveyed, and the escapement system automatically aligns the disorganized parts in a space orientation that is easy for the machine to automatically process, and then smoothly transports them to the subsequent escapement for the preparation of subsequent robotic gripping.


  1. The grab-shift-placement mechanism grabs or vacuums the component that is positioned by the escapement and then moves to another location (usually the assembly work position).


  1. The assembly working mechanism of the automatic assembly equipment refers to the mechanism used to complete the main action of the assembly work, such as pressing, clamping, screwing, clamping, bonding, welding, riveting, bonding, welding the work piece to the previous part.


  1. The testing mechanism is used to test the previous assembly parts or the previous work results of the machine, such as part defect detection, size inspection, defect detection, function detection, and material purging inspection.


  1. The mechanism for picking up of automation assembly equipment machine work piece is used to sort out the assembled qualified parts and defective parts from the machine.


Dongguan Yiheda Automation Co.,Ltd, established in 2010, is an expert custom automation company, specializes in designing and manufacturing the custom automation solution to customers. If you are looking for automatic production equipment, just contact us!

Technical Applications

Yiheda Automation R & D team can provide you with professional China automatic production line, we have developed many machines for different industries, such as automatic assembly, automatic welding, visual inspection, laser marking, robot integeration, recording and traceability and other custom machine.


Robot Feeding Application

Full automatic feeding machine, can automatic identify the defective product in key assembly station and discharge it. Improved the production efficiency and decreased the labor cost.



Automation can be defined as the technology by which a process or procedure is performed without human assistance.

In other words, Automation or automatic control, is the use of various control systems for operating equipment such as machinery, processes in factories, boilers and heat treating ovens, switching on telephone networks, steering and stabilization of ships, aircraft and other applications and vehicles with minimal or reduced human intervention. Some processes have been completely automated.


Why is automation so widely used today?

  1. Improving efficiency and control quality

Most of mechanical automation devices are able to automatically process and control the information, they are more sensitive, accurate and wider than manual in inspection area. The automatic control system makes sure that the execution of mechanism is conform to the design, which will be not affected by operators. Thus the production efficiency and quality can be ensured indirectly. For example, the CNC machine is mare stable and its production efficiency is 2 to 6 times of the ordinary machine; if the machine is equipped with flexible manufacturing system the utilization can make 1.2 to 3.2 times better, the number of machine tools can be reduced by 20%, the manpower can be reduced by 20%, the lead time can be reduced by 40% and the cost can be reduced by 20%. Besides, the mechanical automation devices can be adjusted by programming, so they are especially suitable for the production of multi-variety and small-batch products. In general, they are the good method for manufacturers to shorten the product development cycle and accelerate the upgrade.


  1. Improving the production safety and reliability

Mechanical automation devices generally can automatically self-monitor, self-alarm, self-diagnosis, self-protect. When devices overload, overpressure, overcurrent, short circuit and meet other power failure during running, they will automatically start the protection program which will avoid accidents and improve the safety. Mechanical automation devices is consist of many electronic components, which reduce the movable components and wear parts, then they are more sensitivity and reliable, thus the failure rate is reduced and service life is longer.


  1. Easy to adjust and maintain

The mechanical automation devices is adjustable by programming to meet various requirements and no need to change any components and parts. If the devices can memorize data, engineers can design several kinds of program and input in the devices, then the devices can change the execution base on different products and programs. Automated inspection and automatic monitoring of mechanical automation devices can automatically prevent failures in the working process and self-restore. Since the widespread adoption of program control and digital display in mechanical automation devices, the operation buttons and handle are reduced, so the operation is more convenient and simple. The motion of the mechanical automation devices is controlled by electronic control system, so they can recently complete all motions. The advanced mechanical automation devices can automatically optimize the operation base on the mathematical model of products and the change of the external parameters.


  1. With compound function and widely applicable

Mechanical automation devices are compound and widely applicable, which get rid of the restriction of single function and technology of mechanical and electrical products. The automation level of them is improved greatly. The flexible and intelligent mechanical automation devices can automatically control, compensate, calibrate, adjust and protect themselves, so they can be applied to different occasions and different fields, to meet different requirements.


  1. Improving working conditions

Mechanical automation devices are knowledge-intensive and technology-intensive. High level of automation can reduce labor intensity, prompt the factory automation, office automation, agricultural automation, transportation, automation, and even home automation.


Non-standard automation equipment industry as a whole presents an obvious upward trend, that is, non-standard automation equipment market has broad space, and even some traditional industries may become the most potential market. However, the number of non-standard enterprises in China is relatively large; the scale is small; the automated manufacturing systems technology is backward; competition homogeneity is also obvious shortcomings, and in this field there is a gap of at least 10 years with developed countries. New non-standard automation equipment is often mechanics equipment, making full use of the latest achievements of information technology. Designers in some Chinese enterprises are not familiar with the products, dare not or will not choose them, which greatly limits the improvement of the level. Many core technologies are not really independent, and it is obviously difficult to reduce the cost of importing equipment. At present, high-end products, such as industrial robots and servo motors, are still mainly imported from abroad.


Although the non-standard automation equipment industry as a whole presents an obvious trend, the market space of non-standard automation equipment is vast, and even some traditional industries may become the biggest market potential. However, with the growth of similar enterprises in China, the proportion of non-standard automation products produced in China is steadily increasing.

Company Introduction

Dongguan Yiheda Automation Co.,Ltd established in 2010 and registered capital of the company is 360 million RMB. There are 1700 staff in the company and more than 110 members in development team.


In the upstream supply chain of automation equipment, Yiheda FA division, aluminum profile division and precision manufacturing division have built a complete automation industry chain, therefore, Yiheda can provide customers with the best automation solutions, the highest cost-effective machine, the shortest delivery time and the best service.


Since its founding, customers group of Yiheda automation cover almost all industries in the manufacturing industry. Especially in the low voltage electrical, automotive, mobile phone, home appliances and electronics industries, Yiheda has accumulated a wealth of experience and earn customers‘ trust.


Yiheda automation,one of the most professional custom automation companies in China, specializes in designing and manufacturing the custom automatic production machines to customers. The filed we are expert in :

  1. Automated Assembly Equipment
  2. Automated Test Equipment including Appearance inspection, Inner and Outer Diameters Inspection, Functional Inspection, Vision Inspection, Hardness Inspection, Air Tightness Inspection, etc.
  3. Automatic Welding Equipment
  4. Automatic Riveting Equipment
  5. Special Purpose Equipment
  6. Factory Automation Design and Upgrading


The enterprise culture:

To make staff happy! To touch the customers! To satisfy the shareholders! To make contribute to the society!



The Secret Technique Of DLP Projector: Color Wheel Dustproof Technology

The Secret Projector: Color Wheel Dustproof Technology

With the promotion of projectors, more and more customers choose to use it to create immersive holographic experiences for their restaurants, hotels and pavilions. The imaging technology of projector is mainly divided into DLP and LCD. If you ask which is much better, we can only say that they each have their own strengths.


If the life of the light source is the evaluation of the service life of the projector, then whether the dust prevention is good or not will affect the performance of the projector for a long time. If you compare the projector to a human being, a healthy person can live a long life, but if he suffers from a chronic disease, his body is damaged, his face is old, and his life expectancy is naturally reduced.


Although compared with the LCD projector, the DLP projector does not have the problem of aging the LCD board at high temperature, and its life is relatively prolonged, it is still a project that needs to be fully packaged in order to improve the dustproof effect in order to maintain the „youth residence“ of the projector image. For example, in the DLP projector key components on the color wheel is quite learned.


The color wheel is in a semi-closed position inside the projector. Even if the filter screen blocks most of the dust, part of the dust will invade the interior, waiting for an opportunity to attach the color wheel surface, so that the imaging effect will be greatly reduced, even if the light source is normal. The rapid decline of picture quality will also make it difficult to use. There are three specific effects:

1.The color wheel in the state of high speed will be surrounded by small dust particles, coupled with the electrostatic adsorption at work, the color wheel has become an dust absorbent, and the brightness of the white color wheel will be reduced by sticking dust on the white color wheel. Other color blocks stick with dust to make the color fade gradually.

2.After the dust invades the color wheel sensor, the motor runs unstable, then the picture shakes, the picture quality is poor for a long time, and the life of the projector is shortened.

3.When dust enters the optical machine, adheres to the optical element, the picture will appear bright spot and the imaging will be very terrible.


Therefore, if the DLP projector picture wants to maintain the life, the color wheel dustproof technology is worth paying attention to. There are two main ways to prevent dust.

1.The magnetic induction projector color wheel is used to detect the change of magnetic field density by Hall effect to judge the rotation of the color wheel, which is no longer affected by ash accumulation. At the same time, the response rate of magnetic induction color wheel is as high as 100W Hz, which is anti-vibration, oil-resistant and not afraid of water vapor. Greatly improve the imaging stability of projector.

2.Compared with the traditional DLP projector with concave sensor, the convex design of convex infrared color wheel sensor is not easy to accumulate ash, receives infrared signal more sensitive, and the projection quality luster is the same as before.


Nowadays, more and more education procurement departments put dust prevention into the core assessment indicators and pay special attention to dust prevention, behind the urgent needs of the real environment. In order to meet the actual needs of users in the field of education, DHN will also continue to in-depth research and development of dustproof technology, including color wheel dustproof technology, every effort of the technology, from every point of careful consideration to the users.


DHN is one of the most professional laser projector manufacturers in China, just contact us!

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