Remote controller battery test auxiliary jig

Abstract

The utility model relates to remote controller battery test technical field discloses a remote controller battery test auxiliary jig, including box shell, the lower surface of box shell is provided with box bottom plate, the inside slide coupling of box shell has the shell of placing, the inside of box shell is provided with test needle, the upper surface fixed connection of box shell has the fixed plate, the inside rotation of fixed plate is connected with the pivot, the outer wall fixed connection of pivot has the pressing plate, the side outer wall of pressing plate is connected with the limit block of clamping, the outer wall slide coupling of limit block has the fixed block, the both sides outer wall fixed connection of limit block has the one end of spring. In the utility model, through pressing plate and remote controller close and carry out pressure to the shell of placing, and through the limit block of pressing plate's limit offset, can make remote controller and test needle always keep stable contact, through the shell of placing and test needle integration in the inside of box shell, can reduce the step of manual hand to test, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of remote control battery testing technology, and in particular to an auxiliary fixture for remote control battery testing. Background Technology

[0002] A remote control is a handheld device that controls electronic devices via wireless signals. Its battery is the core power supply unit. Testing it can prevent common faults such as poor contact and loose batteries, ensuring the remote control is reliable and durable and improving the user experience. Therefore, a remote control battery testing auxiliary fixture is needed.

[0003] A remote control battery testing auxiliary fixture is mainly used to quickly and accurately test the battery contact performance. By fixing the battery position and stably connecting the test probe, it ensures the reliability of the measurement of parameters such as voltage and current, improves the testing efficiency and protects the remote control circuit. In the existing technology, remote controls are usually tested manually by wiring, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an auxiliary fixture for testing remote control batteries, which aims to improve the problem of time-consuming, labor-intensive, and inefficient manual testing of remote controls using wiring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a remote control battery testing auxiliary fixture, comprising a housing, a bottom plate provided on the lower surface of the housing, a placement shell slidably connected inside the housing, a test probe provided inside the housing, a fixing plate fixedly connected to the upper surface of the housing, a rotating shaft rotatably connected inside the fixing plate, a pressure plate fixedly connected to the outer wall of the rotating shaft, a limit block engaged on one side of the outer wall of the pressure plate, a fixing block slidably connected to the outer wall of the limit block, the lower surface of the fixing block fixedly connected to the upper surface of the housing, one end of a spring fixedly connected to both sides of the outer walls of the limit block, the other end of the spring fixedly connected to the inside of the fixing block, and an opening and closing assembly provided on the inner wall of the housing.

[0006] The above technical solution involves: a placement shell located inside the housing, which holds the remote control; a test probe located inside the housing for resistance testing; and the bottom of the test probe for connecting wires. The placement shell can slide up and down. Rotating the pressure plate brings it into close contact with the remote control inside the placement shell. This contact compresses the placement shell, causing it to move the remote control downwards to contact the test probe for testing. A limiting block restricts the pressure plate's movement, preventing it from shifting and ensuring that the pressure plate and remote control remain in contact, thus avoiding inaccurate test results due to deviation.

[0007] As a further description of the above technical solution: The opening and closing assembly includes a hinge, one side of which is fixedly connected to the inner wall of the box shell, and the other side of which is fixedly connected to the upper surface of the box bottom plate. An upper buckle is fixedly connected to the outer wall of the box shell, and a lower buckle is fixedly connected to the outer wall of the box bottom plate. The outer wall of the upper buckle engages with the inner wall of the lower buckle.

[0008] The above technical solution allows the box shell and bottom plate to open and close via hinge one, and the upper and lower latches can lock the box shell and bottom plate when they are closed, facilitating the movement of the fixture.

[0009] As a further description of the above technical solution: The upper surface of the housing is provided with buttons and indicator lights.

[0010] The above technical solution uses the enclosure as the main switch for controlling the testing function. Pressing the enclosure can activate the one-button test, and the indicator light is used to provide feedback on the test results, making it easy to know the test results in a timely manner.

[0011] As a further description of the above technical solution: The inside of the housing is rotatably connected to a fixed column, the outer wall of the fixed column is fixedly connected to a turntable, the outer wall of the fixed column is rotatably connected to a support plate, the lower surface of the support plate is fixedly connected to the upper surface of the bottom plate of the housing, and the outer wall of the fixed column is fixedly connected to a handle.

[0012] The above technical solution involves a turntable for storing cables, a fixing post for fixing the turntable, and a fixing post for fixing the handle. By rotating the handle, the fixing post can be driven to rotate the turntable, thereby enabling the cable winding and unwinding process, ensuring the neatness of the cables and reducing tangling.

[0013] As a further description of the above technical solution: A support block is fixedly connected to the outer wall of the fixed column, and a hinge two is fixedly connected to one side of the outer wall of the support block. A limit plate is fixedly connected to the other side of the hinge two. The inner wall of the limit plate is engaged with the limit column, and the outer wall of the limit column is fixedly connected to the outer wall of the housing.

[0014] The above technical solution allows the limiting plate to rotate via hinge two. The limiting post has a limiting effect on the limiting plate. By rotating the limiting plate, the limiting plate is fitted onto the outer wall of the limiting post, which restricts the rotation of the throttle and prevents the throttle from deviating. This effectively ensures that the wire will not become loose due to the rotation of the turntable when it is stored or released to the appropriate length.

[0015] As a further description of the above technical solution: An automatic calibration module is installed inside the housing. The output signal of the automatic calibration module is connected to the input of the solar panel position detection module, and the output signal of the automatic calibration module is connected to the input of the mechanical performance testing module.

[0016] Through the above technical solution, the automatic calibration module outputs calibration signals to the solar panel position detection module and the mechanical performance testing module to ensure the accuracy of subsequent test data.

[0017] As a further description of the above technical solution: The output of the solar panel position detection module is connected to the input of the electrode continuity test module. The output of the electrode continuity test module is connected to the input of the mechanical performance test module. The output of the electrode continuity test module is connected to the input of the Bluetooth test module. The outputs of the solar panel position detection module, electrode continuity test module, mechanical performance test module, and Bluetooth test module are all connected to the input of the data synchronization and traceability module.

[0018] The above technical solution allows for the testing of multiple performance parameters of the remote control through the cooperation of the battery panel position detection module, electrode continuity test module, mechanical performance test module, and Bluetooth test module. This facilitates understanding whether the remote control's battery components are fully functional. By transmitting the test data to the data synchronization and traceability module for data storage, the data can be traced and used for technical diagnostics, facilitating adjustments in subsequent product production.

[0019] As a further description of the above technical solution: The output signal of the data synchronization and tracing module is connected to the input of the indicator light.

[0020] Through the above technical solution: the data synchronization and traceability module summarizes the received data and generates a comprehensive status command, which is then transmitted to the indicator light. After parsing the command, the indicator light provides feedback on the test results by controlling its brightness, color, and flashing frequency, allowing operators to quickly understand the product's problems.

[0021] This utility model has the following beneficial effects: 1. In this utility model, by pressing the pressure plate tightly against the remote control and applying pressure to the placement shell, and by limiting the offset of the pressure plate by the limiting block, the remote control and the test probe can always maintain stable contact. By integrating the placement shell and the test probe inside the housing, the steps of manual testing can be reduced, and the testing efficiency can be improved.

[0022] 2. In this utility model, multiple performance parameters of the remote control are tested through a battery panel position detection module, an electrode continuity test module, a mechanical performance test module, and a Bluetooth test module, thereby improving the accuracy of remote control testing. At the same time, the test data is transmitted to a data synchronization and traceability module for data storage and to facilitate data traceability for technical diagnosis. The test results are then sent to an indicator light through the data synchronization and traceability module. The indicator light controls the brightness, color, and other display states to provide visual feedback on the test results, allowing operators to promptly learn about the test results. Attached Figure Description

[0023] Figure 1 This is a perspective view of a remote control battery testing auxiliary fixture proposed in this utility model; Figure 2 This is a partial structural diagram of the placement shell of an auxiliary fixture for testing remote control batteries proposed in this utility model; Figure 3 This is a cross-sectional view of the internal structure of the housing of a remote control battery testing auxiliary fixture proposed in this utility model; Figure 4 This is a partial structural diagram of the turntable of a remote control battery testing auxiliary fixture proposed in this utility model; Figure 5 This is a partial structural diagram of the limiting block of a remote control battery testing auxiliary fixture proposed in this utility model; Figure 6 This is a schematic block diagram of the module connection of an auxiliary fixture for testing remote control batteries proposed in this utility model.

[0024] Legend: 1. Box shell; 2. Box bottom plate; 3. Placement shell; 4. Test probe; 5. Fixing plate; 6. Rotating shaft; 7. Pressure plate; 8. Limiting block; 9. Fixing block; 10. Spring; 11. Opening and closing assembly; 1101. Hinge one; 1102. Upper buckle; 1103. Lower buckle; 12. Button; 13. Indicator light; 14. Fixing post; 15. Turntable; 16. Support plate; 17. Turn handle; 18. Support block; 19. Hinge two; 20. Limiting plate; 21. Limiting post. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 5 An embodiment of this utility model provides a remote control battery testing auxiliary fixture, including a housing 1, a bottom plate 2 on the lower surface of the housing 1, a placement shell 3 slidably connected inside the housing 1, a test needle 4 inside the housing 1, a fixing plate 5 fixedly connected to the upper surface of the housing 1, a rotating shaft 6 rotatably connected inside the fixing plate 5, a pressure plate 7 fixedly connected to the outer wall of the rotating shaft 6, a limit block 8 snapped onto one side of the outer wall of the pressure plate 7, a fixing block 9 slidably connected to the outer wall of the limit block 8, the lower surface of the fixing block 9 fixedly connected to the upper surface of the housing 1, one end of a spring 10 fixedly connected to both sides of the outer walls of the limit block 8, the other end of the spring 10 fixedly connected to the inside of the fixing block 9, and an opening and closing assembly 11 provided on the inner wall of the housing 1. Specifically, the bottom plate 2 supports the outer shell 1, the placement shell 3 holds the remote control and supports it, the inner top wall of the outer shell 1 has a support shell with an elastic element inside, the bottom support leg of the placement shell 3 slides inside the support shell, the elastic element of the support shell allows the placement shell 3 to move downwards and then return to its original position, the outer shell 1 fixes the fixing plate 5, the outer shell 1 ensures the stability of the fixing plate 5, the fixing plate 5 supports the outer shell 1, the rotating shaft 6 is fixed inside the pressure plate 7 and fixes the pressure plate 7, rotating the pressure plate 7 causes the rotating shaft 6 to rotate inside the fixing plate 5, the pressure plate 7 supports the remote control. When the pressure plate 7 rotates downwards, it will come into contact with the remote control. As it continues to move downwards, it will squeeze the remote control and drive the bottom plate 2 of the box to move downwards. At this time, the part of the remote control to be tested will come into contact with the test needle 4, and then the test will be carried out. The fixing block 9 supports and limits the movement of the limiting block 8, so that the limiting block 8 can only move back and forth inside the fixing block 9. The spring 10 has a reset function for the limiting block 8. Pulling the limiting block 8 will compress the spring 10. When the pressure plate 7 is in contact with the remote control, the limiting block 8 will be released, and the spring 10 will reset the limiting block 8 through its elasticity. The limiting block 8 activates the limiting offset function of the pressure plate 7, so that the pressure plate 7 can be tightly attached to the remote control.

[0027] Reference Figure 3 The opening and closing assembly 11 includes a hinge 1101. One side of the outer wall of the hinge 1101 is fixedly connected to the inner wall of the housing 1, and the other side of the outer wall of the hinge 1101 is fixedly connected to the upper surface of the bottom plate 2. An upper buckle 1102 is fixedly connected to the outer wall of the housing 1, and a lower buckle 1103 is fixedly connected to the outer wall of the bottom plate 2. The outer wall of the upper buckle 1102 is engaged with the inner wall of the lower buckle 1103. Specifically, hinge 1101 is existing technology. The opening and closing component 11 can connect the case shell 1 and the case bottom plate 2, enabling the case shell 1 and the case bottom plate 2 to open and close. The case shell 1 has a fixing effect on the upper buckle 1102, and the case bottom plate 2 has a fixing effect on the lower buckle 1103. The upper buckle 1102 and the lower buckle 1103 form a complete buckle effect. At the same time, the upper buckle 1102 and the lower buckle 1103 are existing technologies. Through the combined effect of the upper buckle 1102 and the lower buckle 1103, the case shell 1 and the case bottom plate 2 can be limited, achieving the effects of opening, closing and locking, and preventing them from coming apart during movement.

[0028] Reference Figure 1 and Figure 2 The upper surface of the housing 1 is provided with a button 12 and an indicator light 13. Specifically, button 12 is used to start the test. Pressing button 12 can start the initial test, and pressing it again can restart the test. Indicator light 13 is used to convey the test results.

[0029] Reference Figure 2 , Figure 3 and Figure 4 The inner wall of the housing 1 is rotatably connected to a fixed column 14, the outer wall of the fixed column 14 is fixedly connected to a turntable 15, the outer wall of the fixed column 14 is rotatably connected to a support plate 16, the lower surface of the support plate 16 is fixedly connected to the upper surface of the bottom plate 2, and the outer wall of the fixed column 14 is fixedly connected to a handle 17. Specifically, the bottom plate 2 of the enclosure has a fixing function on the support plate 16. The fixing post 14 rotates inside the enclosure 1 and the support plate 16. The support plate 16 and the enclosure 1 can support the fixing post 14. The fixing post 14 has a fixing function on the turntable 15 and the handle 17. The turntable 15 is used to store test wires. After the test wire is wound around the outer wall of the turntable 15, turning the handle 17 will cause the fixing post 14 to rotate. The rotation of the fixing post 14 can drive the turntable 15 to rotate. The rotation of the turntable 15 will have the effect of winding or unwinding the test wires, which is convenient for quick organization and retrieval of test wires and improves organization efficiency.

[0030] Reference Figure 2 , Figure 3 and Figure 4 A support block 18 is fixedly connected to the outer wall of the fixed column 14. One side of the second hinge 19 is fixedly connected to the outer wall of the support block 18. A limit plate 20 is fixedly connected to the other side of the second hinge 19. A limit column 21 is snapped into the inner wall of the limit plate 20. The outer wall of the limit column 21 is fixedly connected to the outer wall of the housing 1. Specifically, the fixing post 14 fixes the support block 18. The rotation of the fixing post 14 causes the support block 18 to rotate synchronously. The support block 18 is connected to the limiting plate 20 through the second hinge 19. The second hinge 19 is existing technology. The second hinge 19 can support the limiting plate 20 and can also allow the limiting plate 20 to rotate and open. The limiting plate 20 has holes inside. The housing 1 fixes the limiting post 21, and the outer wall of the housing 1 is provided with multiple limiting posts 21. When the limiting plate 20 is rotated so that it fits on the outer wall of the limiting post 21, the limiting post 21 will limit the limiting plate 20, thereby limiting the displacement of the throttle 17 and preventing the throttle 17 from deviating.

[0031] Reference Figure 1 and Figure 6 The housing 1 is equipped with an automatic calibration module. The output signal of the automatic calibration module is connected to the input of the solar panel position detection module, and the output signal of the automatic calibration module is connected to the input of the mechanical performance testing module. Specifically, when calibration is required or calibration conditions are triggered, such as temperature changes, the automatic calibration module loads the built-in high-precision reference block, collects the raw data from the sensor and calculates the offset, and then writes the compensation parameters into the registers of the solar panel position detection module and the mechanical performance test module in real time. At the same time, it updates the calibration record in the non-volatile memory. After calibration is completed, the solar panel position detection module and the mechanical performance test module immediately apply the new parameters to ensure the accuracy of subsequent test data.

[0032] Reference Figure 1 and Figure 6 The output signal of the solar panel position detection module is connected to the input signal of the electrode continuity test module. The output signal of the electrode continuity test module is connected to the input signal of the mechanical performance test module. The output signal of the electrode continuity test module is connected to the input signal of the Bluetooth test module. The output signals of the solar panel position detection module, electrode continuity test module, mechanical performance test module, and Bluetooth test module are all connected to the input signal of the data synchronization and traceability module. The output signal of the data synchronization and traceability module is connected to the input signal of the indicator light 13. Specifically, the laser displacement sensor in the battery panel position detection module can accurately measure the installation position of the battery panel. Once the position detection is successful, its output signal triggers the electrode continuity test module via the digital output interface. The electrode continuity test module contacts the battery panel electrode through test pin 4 and determines the continuity status through current injection and voltage detection. If the continuity test passes, the signal immediately activates the mechanical performance test module via the RS485 bus. The mechanical performance test module uses a detection unit composed of pressure and displacement sensors to quantitatively evaluate the elasticity and assembly force of the battery compartment latches. Simultaneously, after the electrode continuity test module confirms the normal physical connection between the battery panel electrode and the remote control motherboard through test pin 4, its output sends a high-level enable signal to the input of the Bluetooth test module, triggering the Bluetooth RF detection process. At this time, the Bluetooth test module scans the remote control's broadcast signal through its built-in antenna to verify its MAC address validity, RSSI strength, and pairing response time. The test results from the three modules—position detection module, electrode continuity test module, and mechanical performance test module—are transmitted in real time to the data synchronization and traceability module via an isolated CAN bus. Simultaneously, the Bluetooth detection module converts the UART signal to CAN via an FT232 chip and transmits it to the data synchronization and traceability module. This module synchronously records test results, calibration logs, and defect types, and supports data export and cloud transmission. Furthermore, in the event of batch quality issues, historical data can be used to quickly locate the fault, facilitating technical diagnosis by technicians. After summarizing the results from all detection modules, the data synchronization and traceability module runs a status arbitration algorithm to generate a comprehensive status command. This command is transmitted to the driver circuit of indicator light 13 via a GPIO pin. The driver circuit then parses the command and controls the brightness, color, and flashing frequency of indicator light 13, providing visual feedback so that operators can clearly understand product problems and ensure that defective products are intercepted promptly.

[0033] Working principle: When this fixture is needed, place the remote control inside the housing 3, then rotate the pressure plate 7 to the upper surface of the remote control. At this time, pull the limiting block 8 outward, and continue to rotate the pressure plate 7 until it is in contact with the surface of the remote control. Then release the limiting block 8, and the spring 10 will cause the limiting block 8 to reset and move to the upper surface of the pressure plate 7, and limit the pressure plate 7 to keep it in close contact with the remote control. When the pressure plate 7 is in contact with the remote control, it will squeeze the remote control and drive the housing 3 to move downward. When the remote control is squeezed and moves downward with the housing 3, it will be in close contact with the test needle 4. By limiting the pressure plate 7 with the limiting block 8, the remote control can always keep in contact with the test needle 4 during the test, avoiding the situation where the test results are inaccurate due to deviation. During testing, the wire needs to be processed. By rotating the handle 17, the fixing post 14 can rotate inside the housing 1 and the support plate 16. The rotation of the fixing post 14 will drive the turntable 15 to rotate. The rotation of the turntable 15 will perform wire winding and unwinding. When the wire is fully wound or the appropriate length of wire is used, the limiting plate 20 is rotated. Through the action of the hinge 2 19, the limiting plate 20 is fitted onto the outer wall of the limiting post 21, which limits the rotation of the handle 17 and prevents the handle 17 from deviating. This keeps the wire clean during use. After the remote control is placed inside housing 3, the battery panel position detection module obtains the installation coordinates of the battery panel through a laser displacement sensor. When the position deviation is within the allowable tolerance range, it sends an enable signal to the electrode continuity test module. Upon receiving the trigger signal, the electrode continuity test module detects the path impedance through test pin 4. If the continuity test passes, it activates the mechanical performance test module via the RS485 interface to evaluate the remote control's snap-fit ​​elasticity and assembly force. Simultaneously, it wakes up the Bluetooth test module via a high-level signal to perform a Bluetooth function test on the remote control. All raw data from the detection modules are transmitted to the data synchronization and traceability module via an isolated CAN bus. The block fuses multi-source data through a built-in state arbitration algorithm, and finally drives the display lamp 13 through a PWM dimming signal. The display lamp 13 provides visual feedback, allowing operators to quickly understand product problems. At the same time, it stores the complete test record with timestamps to the local database and synchronizes it to the cloud. This fixture not only ensures that the remote control is always in stable contact with the testing instrument during testing, but also reduces the steps of manual wiring testing through the separate testing box design, improves testing efficiency, and keeps the wiring clean. It can also test multiple functions of the remote control and visualize the results through the display lamp 13, improving testing accuracy and ensuring timely detection of defective products.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A remote control battery testing auxiliary fixture, comprising a housing (1), characterized in that: The lower surface of the housing (1) is provided with a bottom plate (2), the interior of the housing (1) is slidably connected with a placement shell (3), the interior of the housing (1) is provided with a test needle (4), the upper surface of the housing (1) is fixedly connected with a fixing plate (5), the interior of the fixing plate (5) is rotatably connected with a rotating shaft (6), the outer wall of the rotating shaft (6) is fixedly connected with a pressure plate (7), one side of the outer wall of the pressure plate (7) is engaged with a limit block (8), the outer wall of the limit block (8) is slidably connected with a fixing block (9), the lower surface of the fixing block (9) is fixedly connected to the upper surface of the housing (1), one end of a spring (10) is fixedly connected to both sides of the outer wall of the limit block (8), the other end of the spring (10) is fixedly connected to the interior of the fixing block (9), and the inner wall of the housing (1) is provided with an opening and closing assembly (11).

2. The remote control battery testing auxiliary fixture according to claim 1, characterized in that: The opening and closing assembly (11) includes a hinge (1101), one side of the outer wall of the hinge (1101) is fixedly connected to the inner wall of the box shell (1), and the other side of the outer wall of the hinge (1101) is fixedly connected to the upper surface of the box bottom plate (2). The outer wall of the box shell (1) is fixedly connected to an upper buckle (1102), and the outer wall of the box bottom plate (2) is fixedly connected to a lower buckle (1103). The outer wall of the upper buckle (1102) is engaged with the inner wall of the lower buckle (1103).

3. The remote control battery testing auxiliary fixture according to claim 1, characterized in that: The upper surface of the housing (1) is provided with a button (12) and an indicator light (13).

4. The remote control battery testing auxiliary fixture according to claim 1, characterized in that: The inside of the housing (1) is rotatably connected to a fixed column (14), the outer wall of the fixed column (14) is fixedly connected to a turntable (15), the outer wall of the fixed column (14) is rotatably connected to a support plate (16), the lower surface of the support plate (16) is fixedly connected to the upper surface of the bottom plate (2), and the outer wall of the fixed column (14) is fixedly connected to a throttle handle (17).

5. The remote control battery testing auxiliary fixture according to claim 4, characterized in that: The outer wall of the fixed column (14) is fixedly connected to a support block (18), the outer wall of the support block (18) is fixedly connected to one side of a second hinge (19), the other side of the second hinge (19) is fixedly connected to a limiting plate (20), the inner wall of the limiting plate (20) is engaged with a limiting column (21), and the outer wall of the limiting column (21) is fixedly connected to the outer wall of the housing (1).

6. The remote control battery testing auxiliary fixture according to claim 1, characterized in that: An automatic calibration module is installed inside the housing (1). The output signal of the automatic calibration module is connected to the input of the battery panel position detection module, and the output signal of the automatic calibration module is connected to the input of the mechanical performance testing module.

7. The remote control battery testing auxiliary fixture according to claim 6, characterized in that: The output of the solar panel position detection module is connected to the input of the electrode continuity test module. The output of the electrode continuity test module is connected to the input of the mechanical performance test module. The output of the electrode continuity test module is connected to the input of the Bluetooth test module. The outputs of the solar panel position detection module, electrode continuity test module, mechanical performance test module, and Bluetooth test module are all connected to the input of the data synchronization and traceability module.

8. The remote control battery testing auxiliary fixture according to claim 7, characterized in that: The output signal of the data synchronization and tracing module is connected to the input of the indicator light (13).

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