Automatic detection module of systematic programmable management technology

Abstract

The invention relates to the technical field of automatic detection, and discloses an automatic detection module of a systematic programmable management technology. Comprising a system power supply, a system processor, a line short circuit detection circuit, a charging detection circuit, a DC voltage detection circuit, a reservation charging function detection circuit, a grounding detection circuit, a PEN detection circuit, a display screen detection circuit, a Bluetooth detection circuit, a WIFI detection circuit, a 4G detection circuit, an ammeter metering detection circuit, an electric leakage detection circuit and a serial port detection circuit. And the charging detection circuit, the direct-current voltage detection circuit, the reserved charging function detection circuit, the grounding detection circuit and the PEN detection circuit gradually output DO1, DO2, DO3, DO4 and DO5 signals according to the system processor to enable corresponding functional circuits to work. According to the automatic detection module based on the systematic programmable management technology, the reliability and the stability of circuit board performance detection are effectively guaranteed, the automation degree of a production and processing factory can be increased, and the production and detection efficiency of the circuit board is improved.

Description

Technical Field

[0001] The present invention relates to the field of automatic detection technology, in particular to an automatic detection module of systematic programmable management technology. Background Art

[0002] With the popularization of a large number of electronic products, network products and automotive products, performance testing during the circuit board production process is particularly important to ensure that various product performance indicators meet the design requirements.

[0003] Each product contains one or more circuit boards to achieve performance indicators in a single or combined manner. Currently, the following types of testing tools are mainly used to assist product performance testing: 1. Simulate the finished product state of the product for pure manual testing. According to the designed function, one or two circuit boards are placed in a specific testing tool at the same time, and connected or led to multiple physical switches, indicator lights, and buzzers on different functional pins. During the testing process, workers manually open or close a physical switch to achieve the function of the product, and use indicator lights or buzzers to manually judge the test results; 2. Combine various instruments and meters to form a huge three-dimensional testing cabinet to achieve semi-automatic testing methods. Analyze the product function categories, purchase expensive instruments and meters such as programmable switching power supplies, oscilloscopes, signal acquisition instruments, industrial computers, multi-channel PLCs, customized software, and cabinets to combine into a huge testing cabinet. The functional pins of the circuit board are connected to the testing cabinet through the testing tool, and the customized software sends the function test command. The circuit board signal is collected and analyzed by the corresponding instruments and meters and the results are fed back to the customized software end to judge the quality of the circuit board function.

[0004] Among the above-mentioned detection methods, the method of purely manual detection by simulating the finished product status of the product, the detection process and results are completely dependent on the workers themselves. If the workers are not focused, have weak job responsibilities or are unfamiliar with professional capabilities, different detection results will be brought to the circuit board detection, and the product quality will be greatly affected; various instruments are combined to form a huge three-dimensional detection cabinet to realize semi-automatic detection means. The three-dimensional detection cabinet needs to be built in advance before the circuit board detection. The cost of setting up the entire cabinet requires hundreds of thousands or even millions of fixed costs. In the later stage, it is also necessary to continuously carry out production and maintenance of related instruments, which invisibly increases the company's investment cost and maintenance cost, which is simply unbearable for smaller companies. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic detection module with systematic programmable management technology to solve the problem proposed in the above background technology that pure manual detection of circuit boards is easily affected by the workers' state and affects product quality; and although the use of three-dimensional detection cabinets can achieve semi-automatic detection, the high construction and maintenance costs make it difficult for small businesses to bear.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic detection module of systematic programmable management technology, including a system power supply, a system processor, a line short circuit detection circuit, a charging detection circuit, a DC voltage detection circuit, a scheduled charging function detection circuit, a grounding detection circuit, a PEN detection circuit, a display screen detection circuit, a Bluetooth detection circuit, a WIFI detection circuit, a 4G detection circuit, an electric meter measurement detection circuit, a leakage detection circuit, and a serial port detection circuit. The charging detection circuit, the DC voltage detection circuit, the scheduled charging function detection circuit, the grounding detection circuit, and the PEN detection circuit gradually output DO1, DO2, DO3, DO4, and DO5 signals according to the system processor to make the corresponding functional circuits work, and synchronously receive ADC1, ADC2, ADC3, ADC4, and ADC5 values ​​output by each circuit; The display screen detection circuit and the serial port detection circuit operate according to the DO6 and DO12 signals output by the system processor; The Bluetooth detection circuit, WIFI detection circuit and 4G detection circuit operate according to the DO7, DO8 and DO9 signals output by the system processor, and read the MAC addresses of Bluetooth and 4G, as well as the firmware version, MAC address and public network connection of WIFI through the serial port; The electric meter measurement detection circuit operates according to the DO10 signal output by the system processor; The leakage detection circuit operates according to the DO11 signal output by the system processor.

[0007] Preferably, the system processor identifies the connector via an IO input / output port.

[0008] Preferably, the electric meter measurement detection circuit reads the voltage and current values ​​of the product output end through the serial port.

[0009] Preferably, the leakage detection circuit simulates a leakage of 30 mA level and reads the DI1 state.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are: First, the present invention can effectively ensure the reliability and stability of circuit board performance detection, increase the degree of automation of production and processing plants, and improve the efficiency of circuit board production detection. This circuit uses commonly used general components, which can be easily found and applied in various scenarios and systems, providing great flexibility and convenience, low cost, and easy upgrading or maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a circuit principle block diagram of the present invention; Figure 2 This is a test flow chart of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] See also Figure 1 and Figure 2 , an automatic detection module of systematic programmable management technology, including system power supply, system processor, line short circuit detection circuit, charging detection circuit, DC voltage detection circuit, scheduled charging function detection circuit, grounding detection circuit, PEN (conductor with both protective grounding wire and neutral electrical function) detection circuit, display screen detection circuit, Bluetooth detection circuit, WIFI (wireless network) detection circuit, 4G (4th generation mobile communication technology) detection circuit, electric meter measurement detection circuit, leakage detection circuit, serial port detection circuit, to achieve the purpose of automatic circuit board detection with ultra-low hardware cost.

[0014] Case 1: When the tooling lower computer issues a start test command, the system power supply automatically supplies power to the system processor to make it work, and then tests the product performance item by item according to the test process.

[0015] 1. Line short-circuit detection circuit: The system processor identifies the high and low states of the signals of the adjacent pins of the product connector through the IO (input and output) port to determine whether the line is in a conductive state and whether the connector pins are short-circuited. For example, if pins 1, 3, 5, etc. of a connector are configured as high levels such as DO0 (output), and DI0 (input) of the adjacent pins 2, 4, 6, etc. of the current connector is detected as low levels, it is considered normal. If DI0 is also high, it is a short circuit.

[0016] 2. Charging detection circuit, DC voltage detection circuit, scheduled charging function detection circuit, grounding detection circuit, PEN detection circuit, etc.: Combined with the simulation and multiple measurements of the product and tooling circuits themselves, a standard threshold range is designed. According to the measurement process, the system processor gradually outputs DO1, DO2, DO3, DO4, and DO5 signals to make the corresponding functional circuits work, and simultaneously receives the ADC1 (analog-to-digital converter), ADC2, ADC3, ADC4, and ADC5 values ​​output by each circuit, and then verifies them with the system threshold. If the verification is successful, it is judged as passed, otherwise it is failed.

[0017] 3. Display screen detection circuit and serial port detection circuit: The system processor outputs DO6 and DO12 signals to make the circuit work. At this time, the system processor sends instructions to the display screen through the serial port to complete the handshake action, which means it passes. Otherwise, it fails.

[0018] 4. Bluetooth detection circuit, WIFI detection circuit and 4G detection circuit: The system processor outputs DO7, DO8 and DO9 signals to make the circuit work. The MAC addresses of Bluetooth and 4G, as well as the firmware version, MAC address and public network connection of WIFI are read through the serial port to determine the detection result. If the MAC addresses and public network of Bluetooth, WIFI and 4G can be read and successfully connected, the surface detection has passed, otherwise it has failed.

[0019] 5. Electric meter measurement detection circuit: The system processor outputs DO10 signal to make the circuit work. The voltage and current values ​​at the output end of the product are read through the serial port and verified with the system threshold. If the verification is successful, it is judged as passed, otherwise it is failed.

[0020] 6. Leakage detection circuit: The system processor outputs DO11 signal to make the circuit work, so that it can simulate 30mA level leakage. If the DI1 status is high, it passes, otherwise it fails.

[0021] When in use, the user starts the power-on process of the device by scanning the QR code or barcode on the device. This step is a key step to ensure that the device can receive power supply normally. Once the device is successfully powered on, the next detection process will be automatically carried out. Next, the line continuity detection circuit is tested. This step is mainly to detect whether the internal circuit of the device is unobstructed and ensure that the current can flow along the predetermined path without open circuit or short circuit. Next is the charging detection, which is an important step to check whether the charging function of the device is working properly. By simulating the charging process, the system will verify whether the device can normally receive and manage the charging current to ensure that it can provide users with stable and safe charging services in actual use. DC Voltage detection is a key step to ensure that the device can work stably under DC voltage input. At this stage, the system will detect the response and performance of the device under different DC voltages to ensure that it can operate normally under various voltage conditions. The scheduled charging function detection is a link to verify whether the scheduled charging function of the device is effective. Users can set the scheduled time to let the device automatically start charging at the specified time. This process will check whether the system can accurately execute the user's scheduled instructions. Grounding detection and PEN detection are important steps to ensure the safety of the device. Grounding detection mainly checks whether the grounding of the equipment is good to avoid safety accidents caused by leakage, while PEN detection checks whether the protective grounding wire of the equipment is effective to prevent The device may cause harm to the user under abnormal circumstances. The display screen detection will verify whether the device's display screen can display information normally. At this stage, the system will check the key indicators of the display screen, such as brightness, color, and resolution, to ensure that the user can clearly see the working status and other important information of the device. Bluetooth, WIFI and 4G detection is a step to verify whether the wireless communication function of the device is normal. The system will check whether the device can connect and transmit data normally to ensure that the user can easily interact with and remotely control the device. The meter measurement detection is a step to check whether the power measurement function of the device is accurate. At this stage, the system will compare the metering results of the device with the actual power consumption to ensure that the user can accurately understand their Power usage, leakage detection is another important step to ensure the safety of the equipment. By simulating leakage, the system will check whether the equipment can detect and cut off the power supply in time to avoid harm to the user. Serial port detection is a step to verify whether the serial port communication function of the equipment is normal. By sending and receiving data, the system will check whether the equipment can communicate effectively with other devices or systems. When all the above test items are qualified, the test pass light will light up, indicating that the equipment has passed the comprehensive test and can be put into use safely and stably. At this time, the system will automatically store and upload the test data to the server for subsequent analysis and reference. Finally, the entire detection process is completed and the device will wait for further operations or instructions from the user.

[0022] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic detection module of systematic programmable management technology, including system power supply, system processor, line short circuit detection circuit, charging detection circuit, DC voltage detection circuit, scheduled charging function detection circuit, grounding detection circuit, PEN detection circuit, display detection circuit, Bluetooth detection circuit, WIFI detection circuit, 4G detection circuit, electric meter measurement detection circuit, leakage detection circuit, serial port detection circuit, characterized in that: The charging detection circuit, the DC voltage detection circuit, the scheduled charging function detection circuit, the grounding detection circuit, and the PEN detection circuit gradually output DO1, DO2, DO3, DO4, and DO5 signals according to the system processor to make the corresponding functional circuits work, and synchronously receive the ADC1, ADC2, ADC3, ADC4, and ADC5 values ​​output by each circuit; The display screen detection circuit and the serial port detection circuit operate according to the DO6 and DO12 signals output by the system processor; The Bluetooth detection circuit, WIFI detection circuit and 4G detection circuit operate according to the DO7, DO8 and DO9 signals output by the system processor, and read the MAC addresses of Bluetooth and 4G, as well as the firmware version, MAC address and public network connection of WIFI through the serial port; The electric meter measurement detection circuit operates according to the DO10 signal output by the system processor; The leakage detection circuit operates according to the DO11 signal output by the system processor.

2. The automatic detection module of the systematic programmable management technology according to claim 1, characterized in that: The system processor identifies the connector through the IO input and output ports.

3. The automatic detection module of the systematic programmable management technology according to claim 1, characterized in that: The electric meter measurement detection circuit reads the voltage and current values ​​of the product output end through the serial port.

4. The automatic detection module of the systematic programmable management technology according to claim 1, characterized in that: The leakage detection circuit simulates a 30mA level leakage and reads the DI1 state.

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