Guoyuan Securities Company Limited(000728)
About Guangdong Ruide Intelligent Technology Co., Ltd
The Shenzhen Stock Exchange:
Guoyuan Securities Company Limited(000728) (hereinafter referred to as " Guoyuan Securities Company Limited(000728) " and "sponsor") is entrusted by Guangdong Ruide Intelligent Technology Co., Ltd. (hereinafter referred to as "Ruide intelligent" or "issuer" or "company") to act as the sponsor (lead underwriter) of Ruide intelligent's initial public offering of shares and listing on the gem. The sponsor and the sponsor representative have Company law of the people's Republic of China (hereinafter referred to as "company law") and securities law of the people's Republic of China (hereinafter referred to as "Securities Law") ）And other laws and regulations and the relevant provisions of the CSRC and Shenzhen Stock Exchange, be honest, trustworthy, diligent and responsible, issue the listing recommendation letter in strict accordance with the business rules and industry self-discipline norms formulated according to law, and ensure that the documents issued are true, accurate and complete. 1、 Issuer profile
(i) Basic information
Name of issuer Guangdong Ruide Intelligent Technology Co., Ltd. registration date: February 4, 1997 (the company was changed into a joint stock limited company on October 15, 2013)
Registered capital: 76.464 million yuan legal representative: Wang Jun
Registered address: Daliang Fengxiang, Shunde District, Foshan City contact information: 0757-29962231
No. 1, Ruixiang Road, Industrial Park [email protected].
Controlling shareholder Wang Jun actual controller Wang Jun
According to the industry classification guidelines for listed companies (revised in 2012) issued by the CSRC, the industry of the company is "C39 computer, communication and other electronic equipment manufacturing industry"; according to the industry classification code of national economy (GB / t4754-2017) issued by the National Bureau of statistics, the industry of the company is one of "manufacturing (c)" "Computer, communication and other electronic equipment manufacturing (C39)". Meanwhile, according to the classification of strategic emerging industries (revised in 2018), the company's main products and services belong to "1.1.2 new computer and information terminal equipment manufacturing" of "1. New generation information technology industry" supported by the state
Development, production and sales: intelligent controller of household appliances, household appliance accessories, integrated circuits, electronic components and electronic products; Induction cooker complete machine; Intelligent household appliances; LED driving power supply, control system, lighting products, business scope and accessories; New energy controller, inverter, control cabinet, distributed power supply, power generation equipment and integrated supporting products; Power automation equipment, electric vehicle controller, uninterruptible power supply, energy storage power supply, electric energy control system and other power supply equipment; Internet of things intelligent home appliance products and system integration, intelligent home system solutions, gateway products and information system platform, home appliance life cycle data service platform and RFID
Reading and writing equipment and supporting software; Software products, medical devices (operated with a valid license), protective articles; operating and acting as an agent for the import and export of various commodities and technologies (except for the commodities and technologies restricted or prohibited by the state, and those involving licenses must be operated with a valid license). (for projects subject to approval according to law, business activities can be carried out only with the approval of relevant departments)
（2） Main business
The company's main business is the R & D, production and sales of intelligent controllers, as well as the production and sales of a small number of terminal products. Its main products include intelligent controllers of small household appliances such as kitchen appliances, living appliances and environmental appliances, and gradually penetrate and expand into the fields of household appliances, medical health, electric tools, smart home and so on. Since the establishment of the company, the main business has not changed. Relying on advanced R & D and design platform, efficient flexible production system, perfect quality management system and good customer service system, the company has deeply rooted in the two core economic circles of the Pearl River Delta and the Yangtze River Delta for more than 20 years, accumulated more high-quality customer resources, and cooperated with Zhejiang Supor Co.Ltd(002032) , Midea, chunmi, Emmett, Xinbao Bear and other well-known manufacturers have established long-term and stable cooperative relations.
（3） Core technology and R & D level
The company attaches great importance to the investment in technological innovation, and has gradually formed and established a perfect R & D system over the years. It has independently developed and mastered a number of core technologies. The main core technologies are as follows:
Patent technology name technology summary technology source achievement transformation application No
Quasi resonant high frequency adopts two (or more) power switches, which is convenient for home application
1. The length of conduction time or power of power switch for converter control independently developed a patented technology of electric intelligent control to divert the switch to reduce the conduction loss. Lower brake
The temperature of IGBT and heat sink is too high
The temperature value in the pot started by the cold pot and the rice judgment
The difference of the temperature value at the beginning of the quantity is calculated and applied to the home
2. The fuzzy algorithm is used to cook the actual rice quantity, the temperature time and the actual rice quantity. A patented rice control technology chip of electric intelligent control is independently developed, and then the corresponding controller is set according to the actual rice quantity
The heating control mode shortens the cooking time and reduces the rice consumption
The quality of rice is guaranteed
By adding a current operational amplifier containing NTC resistance
Compensation circuit, NTC resistance always monitors the internal resistance of the machine body
The resistance of NTC resistance increases when the temperature increases
The current value of constantan wire decreases, and the current operational amplifier compensation circuit is applied at home
3. The compensation is stable, and the output voltage decreases with it. The program detects that the thermal flow sampling value of a patent of electric intelligent control independently developed by the company decreases, and the program will the appropriate adder
PWM to compensate for reduced work due to increased temperature
Rate, overcome the problem of power attenuation and realize power
Accurate and stable output
Patent technology name technology summary technology source achievement transformation application No
Applicable to wall breaking machine without anti overflow needle detection, according to
Adjust the heating power of the wall breaker by temperature sampling value and apply it to home
4. Prevent overflow, judge boiling control and mixing cycle, avoid overflow of wall breaker, independently develop a patented technology of electric intelligent control, and determine the brake according to the change trend of temperature sampling value
Whether there is boiling in the cup body to realize no probe prevention
overflow check
Fast water heating PID control software algorithm is adopted,
PID precise temperature control, high-power thyristor chopper and water flow are applied at home
5. It is composed of technical control and fast temperature sampling, which can realize fast independent research and development of electric intelligent control. One patent is fast heating and constant temperature, and the constant temperature temperature drift is less than that of the controller
±0.5℃
The resistance capacitance step-down power supply scheme is adopted, which consists of step-down and integral power supply
Current, filtering, voltage stabilization, power control and voltage transmission are applied at home
6. It is composed of ultra-low standby power output and other circuits to realize standby power below 0.5W. It has independently developed a patented power consumption control technology of electric intelligent control, which can provide DC controller with higher power during operation
Power supply, in line with the new EU EUP energy consumption standard, capacity
Easy to meet EMC requirements
The countermeasure element of new material is adopted through small capacitance
Low power plugs and amorphous components, optimized filter circuits and relays for home applications
7. Anti ignition control circuit enables the electromagnetic controller to obtain good EMC performance of a patented technology of self-developed electric intelligent control. When good EMC effect is obtained, the controller
Effectively reduce the standby power consumption and effectively solve
Spark problem caused by plug-in
In order to simplify the control of electric rice cooker household appliances
Simplify the DC circuit structure, reduce the cost of control circuit, and apply electricity to home
The working voltage of 85V power supply technology circuit is unified as + 5V, forming a DC power supply circuit controller with independent research and development of a patent of electric intelligent control + 5V DC single power supply
Structure, miniaturized design, low cost
On the display bracket, several digital displays are set and applied to the home
9 display module technology hole, touch key hole, electronic independent research and development of integrated control board, electrical intelligent control, 1 patent software control, and a circuit board to realize display and controller
System integration, lower overall cost
Through the transformation of rectifier filter circuit and switching power supply
Circuit, voltage detection and processing circuit, load control
Home appliance energy-saving control circuit, current detection and processing circuit and wireless remote control are applied at home
The independent research and development of 10 control technology circuit and main control unit MCU to control the load is a patented switch of electric intelligent control, which protects the load controller in case of grid voltage fluctuation
It works normally within a certain power range to achieve energy saving
control
Patent technology name technology summary technology source achievement transformation application No
The battery intelligent protector can automatically control the load on and off through MOS tube, which is effectively applied to home
11 protection technology solves the excessive discharge of battery due to virtual voltage, and has a patent responsible for self restart and prolonging battery life
It is realized in a wide output power range
Zero current on or off of switching power tube, from
Zero current soft switching minimizes the switching power loss of the circuit, which can be applied to home
12 turn off PWM control to output stable high-voltage power supply, and well adjust the technical rate of one patent system of self-developed electric intelligent control for output power. The converter can pass through the brake
Frequency modulation or adjusting the duty cycle to change the output
Effect of input power
By setting and shooting on the intelligent control of household appliances
The control circuit corresponding to the frequency identification response circuit is applied to the home
The RFID information port circuit is connected with the data line of a patented system technology chip of RFID self-developed electric intelligent control by using printed circuit board wires
