Testing device for voiceprint fire-fighting detector of energy storage cabinet

Abstract

The utility model belongs to the technical field of electronic circuits, and particularly discloses a testing device for a voiceprint fire-fighting detector of an energy storage cabinet, which comprises a touch display screen, a main controller, a sound amplification module and a power supply module, the main controller is used for establishing communication connection with the energy storage cabinet voiceprint fire-fighting detector, and the touch display screen is used for sending a corresponding test signal to the main controller and receiving and displaying a test result signal fed back by the main controller. And the main controller is used for controlling the sound amplification module according to the test signal, then sending sound in a specified frequency range to the energy storage cabinet voiceprint fire-fighting detector, receiving test data transmitted by the energy storage cabinet voiceprint fire-fighting detector, generating a test result signal according to the test data, and transmitting the test result signal to the touch display screen. According to the utility model, the automatic performance test of the energy storage cabinet voiceprint fire-fighting detector is realized, the test efficiency of the energy storage cabinet voiceprint fire-fighting detector is effectively improved, and the time cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic circuits, and particularly relates to a test device for a sound fingerprint fire detector of an energy storage cabinet. Background Technique

[0002] In recent years, multiple energy storage system fires that have occurred at home and abroad have attracted widespread attention to lithium battery energy storage systems. Once an energy storage system fire occurs, it will cause significant property losses. When the core of the energy storage cabinet undergoes thermal runaway and the safety valve opens, a specific sound signal will be generated. At this time, the thermal runaway is not severe, and the thermal runaway of the core can be detected through identifying this sound signal at an extremely early stage. Relevant information indicates that the exhaust noise signal of the core safety valve is distributed in the range of 0 - 8000 Hz, but mainly in the low-frequency band below 3000 Hz. Currently, fire detectors that detect the sound of the core safety valve opening to achieve sound fingerprint fire detection have the advantages of fast implementation speed, high sensitivity, and low cost, and are therefore widely used. However, there is currently a lack of a dedicated test device for the sound fingerprint fire detector of the energy storage cabinet to effectively test its performance. Usually, the test is completed by manual testing, with low test efficiency and high time cost. Content of the Utility Model

[0003] The purpose of the utility model is to provide a test device for a sound fingerprint fire detector of an energy storage cabinet to solve the above problems existing in the prior art.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a test device for a sound fingerprint fire detector of an energy storage cabinet, including a touch display screen, a main controller, a sound amplification module, and a power supply module. The main controller is respectively connected to the touch display screen and the sound amplification module, and the main controller is used to establish a communication connection with the sound fingerprint fire detector of the energy storage cabinet. The touch display screen is used to send corresponding test signals to the main controller and receive the test result signals fed back by the main controller for display. The main controller is used to generate control signals according to the test signals and transmit them to the sound amplification module, and receive the test data transmitted by the sound fingerprint fire detector of the energy storage cabinet, generate test result signals according to the test data, and transmit the test result signals to the touch display screen. The sound amplification module is used to emit sounds within a specified frequency range to the sound fingerprint fire detector of the energy storage cabinet after receiving the control signals. The power supply module is used to connect to an external power supply, perform power conversion processing on the external power supply, and supply power to the main controller, the touch display screen, and the sound amplification module.

[0006] When it is used, the tester can send a corresponding test signal to the main controller through the touch display screen. After receiving the test signal, the main controller generates a corresponding control signal and transmits it to the sound amplification module to control the sound amplification module to send a sound within a specified frequency range to the energy storage cabinet voiceprint fire detector. After receiving the sound, the sound sensor of the energy storage cabinet voiceprint fire detector outputs a sound signal to its control device. The control device of the energy storage cabinet voiceprint fire detector feeds back the corresponding test data to the main controller according to the sound signal. The main controller then generates a test result signal according to the test data, and transmits the test result signal to the touch display screen for display, so that the tester can intuitively see the test result of the energy storage cabinet voiceprint fire detector.

[0007] In a possible design, the device includes a main control circuit board, and the main controller, the sound amplification module and the power supply module are all integrated on the main control circuit board.

[0008] In a possible design, the main controller adopts a STM32H743VIT6 microcontroller.

[0009] In a possible design, the main controller is connected to the touch display screen via an RS232 bus, and the main controller is connected to the energy storage cabinet voiceprint fire detector via a CAN bus.

[0010] In a possible design, the touch display screen adopts a TPC7062 touch display screen.

[0011] In a possible design, the sound amplification module includes a buzzer driving circuit and a buzzer, the control signal is a PWM signal, and the buzzer driving circuit is used to drive the buzzer to emit sound within a specified frequency range after receiving the PWM signal.

[0012] In one possible design, the power supply module includes a first power conversion circuit for converting a 24V DC external power supply into a 5V DC power supply for output, an isolated power supply circuit for isolating the 5V DC power supply output by the first power conversion circuit and outputting the isolated 5V DC power supply, and a second power conversion circuit for converting the isolated 5V DC power supply output by the isolated power supply circuit into a 3.3V DC power supply.

[0013] In one possible design, the first power conversion circuit includes a TPS5430DDA type voltage regulator chip, the isolated power supply circuit includes a B0505S-1WR3 type DC-DC isolation chip, and the second power conversion circuit includes a SPX1117M3-L-3-3 type voltage regulator chip.

[0014] In a possible design, the main controller is connected to a burning serial port.

[0015] In a possible design, a status indicator light is connected to the main controller.

[0016] Beneficial effects: The utility model can fill the blank of the current test device for the acoustic fingerprint fire detector of the energy storage cabinet, realize the automatic performance test of the acoustic fingerprint fire detector of the energy storage cabinet, effectively improve the test efficiency of the acoustic fingerprint fire detector of the energy storage cabinet and its production and application efficiency, save time costs, and the overall circuit of the device is simple and convenient to manufacture. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the device composition provided by the embodiment of the present utility model;

[0019] Figure 2 Schematic diagram of the first part of the circuit of the microcontroller;

[0020] Figure 3 Schematic diagram of the second part of the circuit of the microcontroller;

[0021] Figure 4 Schematic diagram of the third part of the circuit of the microcontroller;

[0022] Figure 5 Schematic diagram of the fourth part of the circuit of the microcontroller;

[0023] Figure 6 Schematic diagram of the fifth part of the circuit of the microcontroller;

[0024] Figure 7 Schematic diagram of the CAN communication circuit;

[0025] Figure 8 Schematic diagram of the circuit of the sound amplification module;

[0026] Figure 9 Schematic diagram of the circuit of the first power conversion circuit;

[0027] Figure 10 Schematic diagram of the isolated power supply circuit;

[0028] Figure 11 Schematic diagram of the circuit of the second power conversion circuit;

[0029] Figure 12 Schematic diagram of the circuit of the programming serial port;

[0030] Figure 13 It is a circuit schematic diagram of a status indicator light. Specific implementation manners

[0031] It should be noted here that the description of these implementation manners is used to help understand the present utility model, but does not constitute a limitation to the present utility model. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present utility model. However, the present utility model can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0032] It should be understood that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments can be understood according to specific situations.

[0033] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, those of ordinary skill in the art should understand that the exemplary embodiments can be implemented without these specific details. For example, a system can be shown in a block diagram to avoid making the example unclear with unnecessary details. In other embodiments, well-known processes, structures, and technologies can be shown without unnecessary details to avoid making the embodiments unclear.

[0034] Embodiment:

[0035] This embodiment provides a test device for a voiceprint fire detector of an energy storage cabinet, as Figure 1 shown, which includes a touch display screen, a main controller, an amplifying module, and a power supply module. The main controller is respectively connected to the touch display screen and the amplifying module, and the main controller is used to establish a communication connection with the voiceprint fire detector of the energy storage cabinet. The touch display screen is used to send corresponding test signals to the main controller and receive the test result signals fed back by the main controller for display. The main controller is used to generate a control signal according to the test signal and transmit it to the amplifying module, and receive the test data transmitted by the voiceprint fire detector of the energy storage cabinet, generate a test result signal according to the test data, and transmit the test result signal to the touch display screen. The amplifying module is used to emit sounds within a specified frequency range to the voiceprint fire detector of the energy storage cabinet after receiving the control signal. The power supply module is used to access an external power supply and perform power conversion processing on the external power supply to supply power to the main controller, the touch display screen, and the amplifying module.

[0036] During specific implementation, testers can select or set the sound frequency range to be tested through the touch display screen, and send corresponding test signals to the main controller. After receiving the test signals, the main controller generates corresponding control signals and transmits them to the sound amplification module to control the sound amplification module to emit sounds within the specified frequency range to the soundprint fire detector of the energy storage cabinet. After the sound sensor of the soundprint fire detector of the energy storage cabinet receives the sound, it outputs a sound signal to its control device. The control device of the soundprint fire detector of the energy storage cabinet feeds back corresponding test data to the main controller according to the sound signal. The main controller then generates a test result signal based on the test data and transmits the test result signal to the touch display screen for display, so that testers can intuitively see the test results of the soundprint fire detector of the energy storage cabinet.

[0037] Furthermore, the device includes a main control circuit board, and the main controller, the sound amplification module, and the power supply module are all integrated on the main control circuit board. By integrating the main controller, the sound amplification module, and the power supply module on the main control circuit board, the integration degree of the device can be improved, space can be saved, and it is convenient for unified packaging and use.

[0038] Furthermore, as Figures 2 to 6 shown, the main controller uses an STM32H743VIT6 type microcontroller. The main controller is connected to the touch display screen through an RS232 bus, and the main controller is connected to the soundprint fire detector of the energy storage cabinet through a CAN communication circuit as Figure 7 shown. The CAN communication circuit includes a TJA1050T / CM,118 type CAN bus transceiver chip and a common mode inductor. The CAN bus transceiver chip is used to realize the transceiver of CAN bus protocol signals, and the common mode inductor plays a role in electromagnetic interference filtering of signals. The touch display screen can use a TPC7062 type touch display screen to efficiently realize test parameter selection, test start / stop control, and test result display.

[0039] As Figure 8 shown, the sound amplification module includes a buzzer drive circuit and a buzzer. The buzzer drive circuit includes an MMBT3904 type switching triode, and the buzzer uses an HNB09A03 type buzzer. The control signal is a PWM signal. When the buzzer drive circuit receives the PWM signal, it drives the buzzer to emit sounds within the specified frequency range according to the PWM signal, so that the soundprint fire detector of the energy storage cabinet can receive it.

[0040] Furthermore, as Figures 9 to 11As shown, the power supply module includes a first power conversion circuit for converting a 24V DC external power supply into a 5V DC power supply for output, an isolated power supply circuit for isolating the 5V DC power supply output by the first power conversion circuit and outputting the isolated 5V DC power supply, and a second power conversion circuit for converting the isolated 5V DC power supply output by the isolated power supply circuit into a 3.3V DC power supply. The first power conversion circuit includes a TPS5430DDA type voltage regulator chip, which can convert a 24V DC external power supply into a 5V DC power supply for output. The isolated power supply circuit includes a B0505S-1WR3 type DC-DC isolation chip, which can realize the isolation conversion of a 5V DC power supply to a 5V DC power supply, playing an effective role in power isolation protection. The isolated 5V DC power supply output by it can supply power to the main controller. The second power conversion circuit includes an SPX1117M3-L-3-3 type voltage regulator chip, which can convert a 5V DC power supply into a 3.3V DC power supply for powering the audio amplification module.

[0041] Further, as Figure 12 shown, the main controller is connected to a programming serial port, and serial programming of the main controller can be achieved through the programming serial port. As Figure 13 shown, the main controller is connected to status indicators for indicating the working status of the device. Exemplarily, a fault indicator can be set to indicate the fault condition of the device, a communication indicator can be set to indicate the communication condition of the device, and an operation indicator can be set to indicate the operation condition of the device. Each status indicator uses a light-emitting diode of a corresponding color.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test device for energy storage cabinet voiceprint fire detector, characterized in that: It includes a touch screen, a main controller, a sound amplification module and a power module. The main controller is connected to the touch screen and the sound amplification module respectively, and the main controller is used to establish a communication connection with the energy storage cabinet voice print fire detector. The touch screen is used to send a corresponding test signal to the main controller, and receive a test result signal fed back by the main controller for display. The main controller is used to generate a control signal according to the test signal and transmit it to the sound amplification module, and receive test data transmitted by the energy storage cabinet voice print fire detector, generate a test result signal according to the test data, and transmit the test result signal to the touch screen. The sound amplification module is used to emit a sound within a specified frequency range to the energy storage cabinet voice print fire detector after receiving the control signal. The power module is used to connect to an external power supply, and perform power conversion processing on the external power supply to power the main controller, the touch screen and the sound amplification module.

2. A test device for energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The device comprises a main control circuit board, and the main controller, the sound amplification module and the power supply module are all integrated on the main control circuit board.

3. A test device for energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The main controller adopts a STM32H743VIT6 microcontroller.

4. A test device for energy storage cabinet voiceprint fire detector according to claim 3, characterized in that: The main controller is connected to the touch display screen via an RS232 bus, and the main controller is connected to the energy storage cabinet voiceprint fire detector via a CAN bus.

5. The testing device for the energy storage cabinet voiceprint fire detector according to claim 1 is characterized in that: The touch display screen adopts a TPC7062 touch display screen.

6. A test device for energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The sound amplification module includes a buzzer driving circuit and a buzzer. The control signal is a PWM signal. The buzzer driving circuit is used to drive the buzzer to emit sound within a specified frequency range after receiving the PWM signal.

7. The testing device for the energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The power supply module includes a first power conversion circuit for converting a 24V DC external power supply into a 5V DC power supply for output, an isolated power supply circuit for isolating the 5V DC power supply output by the first power conversion circuit and outputting the isolated 5V DC power supply, and a second power conversion circuit for converting the isolated 5V DC power supply output by the isolated power supply circuit into a 3.3V DC power supply.

8. The testing device for the energy storage cabinet voiceprint fire detector according to claim 7, characterized in that: The first power conversion circuit includes a TPS5430DDA type voltage regulator chip, the isolated power circuit includes a B0505S-1WR3 type DC-DC isolation chip, and the second power conversion circuit includes a SPX1117M3-L-3-3 type voltage regulator chip.

9. The testing device for energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The main controller is connected with a burning serial port.

10. The testing device for energy storage cabinet voiceprint fire detector according to claim 1, characterized in that: The main controller is connected with a status indicator light.

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