System for monitoring running state of vehicle in real time

Abstract

A real-time monitoring system for the running state of a vehicle is provided with an alarm signal acquisition control circuit board and an alarm signal processing control circuit board. The alarm signal acquisition control circuit board is provided with an acquisition board power supply circuit, an acquisition board function key circuit, an acquisition board Bluetooth module circuit, an acquisition board optocoupler control circuit, an acquisition board signal control detection circuit and an acquisition board interface circuit; the alarm signal processing control circuit board is provided with a control board power supply circuit, a control board function key circuit, a control board Bluetooth module circuit, a control board monaural power amplifier module circuit and a control board interface circuit. An alarm signal acquisition control circuit board is connected with a peripheral circuit to acquire sensor signals, acquired data information is transmitted to an alarm signal processing control circuit board through a Bluetooth module circuit, and voice information of a running state is output through a control board monaural power amplifier module circuit. Therefore, a user can obtain the real-time running state information of the vehicle in real time.

Description

Technical Field

[0001] The utility model relates to a real-time monitoring system for vehicle running status. Background Art

[0002] A real-time vehicle operating status monitoring system is a system that can monitor the vehicle's operating status in real time. It is used to track or monitor the vehicle's driving trajectory, real-time location, vehicle operating status, and alarm information, allowing managers to promptly query, manage, and control the vehicle's real-time status. Currently, in addition to the monitoring systems provided by automobile manufacturers, many models cannot provide real-time operating status monitoring, or their existing monitoring systems are not comprehensive enough to meet actual usage needs. Utility Model Content

[0003] In view of the above situation, in order to solve the problems existing in the above technology, the utility model proposes a real-time monitoring system for the vehicle operation status, which is provided with an alarm signal acquisition control circuit board and an alarm signal processing control circuit board. The alarm signal acquisition control circuit board is provided with an acquisition board power supply circuit, an acquisition board function key circuit, an acquisition board Bluetooth module circuit, an acquisition board optocoupler control circuit, an acquisition board signal control detection circuit and an acquisition board interface circuit. The alarm signal processing control circuit board is provided with a control board power supply circuit, a control board function key circuit, a control board Bluetooth module circuit, a control board mono power amplifier module circuit and a control board interface circuit.

[0004] According to a real-time monitoring system for vehicle operation status of the present application, the power supply in the acquisition board power supply circuit is an external input +24V, which is converted into a +12V voltage after being stepped down by the LM7812 step-down chip U1, and is converted into a +5V voltage after being stepped down by the LM7805 step-down chip U2 to power the single-chip computer; a filter capacitor C1 is provided at the input end of the acquisition board power supply circuit, and a capacitor C2 and a capacitor C3 are provided at the output end of the acquisition board power supply circuit to prevent oscillation and a decrease in voltage stabilization efficiency.

[0005] According to a real-time monitoring system for vehicle operation status of the present application, the acquisition board Bluetooth module circuit is provided with an on-line switch button J8, and the on-line switch button J8 is arranged between the Bluetooth module J14 and the single-chip microcomputer.

[0006] According to a real-time monitoring system for vehicle operation status of the present application, the acquisition board interface circuit is provided with several 3-pin connector ports providing GND signals and VCC 5V signals and a signal input port J7.

[0007] According to a real-time monitoring system for vehicle operation status of the present application, the power supply in the control board power supply circuit is an external input +24V, which is converted into a +12V voltage after being stepped down by the LM7812 step-down chip U1, and is converted into a +5V voltage after being stepped down by the LM7805 step-down chip U2 to power the single-chip microcomputer; a filter capacitor C1 is provided at the input end of the control board power supply circuit, and a capacitor C2 and a capacitor C4 are provided at the output end of the control board power supply circuit to prevent oscillation and a decrease in voltage stabilization efficiency.

[0008] According to a real-time monitoring system for vehicle operation status of the present application, the control panel Bluetooth module circuit is provided with an on-route switch button J2, and the on-route switch button J2 is provided between the Bluetooth module M1 and the single-chip microcomputer.

[0009] According to a real-time monitoring system for vehicle operation status of the present application, the control board mono power amplifier module circuit is provided with a WTN6 voice chip U4 and an XPT8871 power amplifier P1 connected thereto.

[0010] According to a real-time monitoring system for vehicle operating status of the present application, the control panel interface circuit is provided with a GND signal port J5, a VCC 5V signal port J6 and an 8-pin connector port P3.

[0011] After adopting the technology proposed in the present invention, the real-time monitoring system for vehicle operation status according to the embodiment of the present invention has the following beneficial effects: it can be arranged or connected to different vehicle models, and the peripheral circuit is connected to the alarm signal acquisition control circuit board to collect sensor signals, and the Bluetooth module circuit of the acquisition board and the Bluetooth module circuit of the control board are used for wireless signal transmission so that the collected data information is transmitted to the alarm signal processing control circuit board, and then the voice information of the operation status is output through the monophonic power amplifier module circuit of the control board, so that the user can obtain the real-time operation status information of the vehicle in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a connection structure diagram of the alarm signal acquisition and control circuit board in the real-time monitoring system for vehicle operation status according to the present application;

[0013] Figure 2 This is a connection structure diagram of the power supply circuit of the acquisition board in the real-time monitoring system for vehicle operation status according to the present application;

[0014] Figure 3 This is a circuit connection structure diagram of the function buttons of the acquisition board in the real-time monitoring system for vehicle operation status according to the present application;

[0015] Figure 4 This is a circuit connection structure diagram of the Bluetooth module of the acquisition board in the real-time monitoring system for vehicle operation status according to the present application;

[0016] Figure 5 This is a connection structure diagram of the optical coupler control circuit of the acquisition board in the real-time monitoring system for vehicle operation status according to the present application;

[0017] Figure 6 This is a connection structure diagram of the acquisition board signal control detection circuit in the real-time monitoring system for vehicle operation status according to the present application;

[0018] Figure 7 This is a diagram showing the connection structure of the acquisition board interface circuit in the real-time monitoring system for vehicle operation status according to the present application;

[0019] Figure 8 This is a connection structure diagram of the alarm signal processing control circuit board in the real-time monitoring system for vehicle operation status according to the present application;

[0020] Figure 9 This is a diagram showing the connection structure of the control panel power supply circuit in the real-time monitoring system for vehicle operation status according to the present application;

[0021] Figure 10 This is a circuit connection structure diagram of the control panel function buttons in the real-time monitoring system for vehicle operation status according to the present application;

[0022] Figure 11 This is a circuit connection structure diagram of the Bluetooth module of the control panel in the real-time monitoring system of the vehicle operation status according to the present application;

[0023] Figure 12 This is a circuit connection structure diagram of a mono-channel power amplifier module on a control board in a real-time monitoring system for vehicle operation status according to the present application;

[0024] Figure 13 This is a diagram showing the connection structure of the control panel interface circuit in the real-time monitoring system for vehicle operation status according to the present application. DETAILED DESCRIPTION

[0025] Various preferred embodiments of the present invention will be described below with reference to the accompanying drawings. The following description with reference to the accompanying drawings is provided to facilitate understanding of the exemplary embodiments of the present invention as defined by the claims and their equivalents. It includes various specific details to aid understanding, but they are to be considered as illustrative only. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Moreover, for the sake of clarity and brevity, detailed descriptions of functions and structures well known in the art will be omitted.

[0026] A real-time monitoring system for vehicle operation status is provided, which is provided with an alarm signal acquisition control circuit board and an alarm signal processing control circuit board. The alarm signal acquisition control circuit board is provided with an acquisition board power supply circuit, an acquisition board function key circuit, an acquisition board Bluetooth module circuit, an acquisition board optocoupler control circuit, an acquisition board signal control detection circuit and an acquisition board interface circuit. The alarm signal processing control circuit board is provided with a control board power supply circuit, a control board function key circuit, a control board Bluetooth module circuit, a control board monophonic power amplifier module circuit and a control board interface circuit.

[0027] The alarm signal acquisition control circuit board is as follows Figure 1 As shown, including:

[0028] 1. Power supply circuit

[0029] like Figure 1 and 2 As shown in the figure, the power supply is an external input +24V, which is converted to +12V voltage after being stepped down by the LM7812 (U1) step-down chip, and then converted to +5V voltage after being stepped down by the LM7805 (U2) step-down chip to power the microcontroller.

[0030] The LM78XX is a step-down, power management, monolithic integrated circuit (MCIC) switching voltage regulator capable of delivering 3A of current with excellent linearity and load regulation. Fixed output versions are available in 12V and 5V versions, with +12V and +5V outputs used in this design.

[0031] The input capacitor C1 is used for filtering, and the output capacitors C2 / C3 are used to prevent oscillation and reduce voltage regulation performance. These capacitors are used to filter ripple.

[0032] The D2 LED acts as an indicator light. When powered, the indicator light turns on, providing an indication. The R1 connected in series with the D2 LED is a current-limiting resistor to prevent high current from burning out the LED.

[0033] After being stepped down by the LM7805 step-down chip, the voltage is converted to +5V and used to power the STC15W408AS microcontroller. C4 and C5 are also filter capacitors used to filter ripple.

[0034] 2. Function button circuit

[0035] like Figure 1 and 3 As shown, S1 and S2 are two key circuits with different functions that have been defined in the program.

[0036] When S1 is pressed, the U3-9 pin of the microcontroller inputs a low level

[0037] When S2 is pressed, the U3-7 pin of the microcontroller inputs a low level

[0038] After the corresponding pin of the microcontroller receives a low-level signal, the system processes and executes the corresponding action.

[0039] 3. Bluetooth module circuit

[0040] like Figure 1 and 4 As shown, J8 is the on-off switch button, which can control the on / off of the communication line between the Bluetooth module and the microcontroller;

[0041] J14 is the DL-20 Bluetooth module, the power supply ports are VCC and GND, and the two middle pins are communication ports.

[0042] 4. Optocoupler control circuit such as Figure 1 and 5 As shown, including:

[0043] (1) TLP521-4 optocoupler control;

[0044] U4 and U5 are two optocouplers. The TLP521-4 is a four-unit optocoupler used for signal output between circuits, completely isolating the front end from the load. This enhances circuit safety, reduces voltage interference, and simplifies circuit design.

[0045] (2) Specific working principle

[0046] When the J7-1 pin inputs a high level, the optocoupler is activated, the U3-18 pin is connected to GND, and the U3-18 pin of the microcontroller inputs a low level. After the corresponding pin of the microcontroller receives the low level signal, the system processes and executes the corresponding action.

[0047] When the J7-1 pin inputs a high level, D3 is an indicator light and serves as an indication.

[0048] The same goes for the others, a total of 8 routes.

[0049] 5. Signal control detection circuit such as Figure 1 and 6 As shown, including:

[0050] J9-J11 are 3-pin connector ports, which are GND signal and VDB 5V signal respectively. The middle pins of the connector are connected to the 3 pins of the microcontroller, which output signals through the socket to control the peripheral circuits;

[0051] R16, R17, and R18 are pull-up resistors, which pull U3-5, U3-6, and U3-4 to a high level. D11, D12, and D13 are voltage regulators, which stabilize the voltage.

[0052] When the 2nd pin of J11 inputs a low level, U3-5 will change from a high level to a low level. After the microcontroller pin receives the low level signal, the system processes and executes the corresponding action.

[0053] When the 2nd pin of J9 inputs a low level, U3-6 will change from a high level to a low level. After the microcontroller pin receives the low level signal, the system processes and executes the corresponding action.

[0054] When the 2nd pin of J10 inputs a low level, U3-4 will change from a high level to a low level. After the microcontroller pin receives the low level signal, the system processes and executes the corresponding action.

[0055] 6. Interface circuit such as Figure 1 and 7 As shown, including:

[0056] J2-J6 are 3-pin connector ports, which are GND signal and VCC 5V signal respectively. The middle pins of the connector are the 5 pins of the microcontroller, which output signals through the socket to control the peripheral circuits;

[0057] J7 is the signal input port.

[0058] The alarm signal processing control circuit board is as follows Figure 8 As shown, including:

[0059] 1. Power supply circuit

[0060] like Figure 8 and 9 As shown in the figure, the power supply is an external input +24V, which is converted to +12V voltage after being stepped down by the LM7812 (U1) step-down chip, and then converted to +5V voltage after being stepped down by the LM7805 (U2) step-down chip to power the microcontroller.

[0061] The LM78XX is a step-down, power management, monolithic integrated circuit (MCIC) switching voltage regulator capable of delivering 3A of current with excellent linearity and load regulation. Fixed output versions are available in 12V and 5V versions, with +12V and +5V outputs used in this design.

[0062] Capacitor C1 is connected to the input for filtering, while capacitors C2 / C4 are added to the output to prevent oscillation and reduce voltage regulation efficiency. These capacitors are used to filter ripple. Large-capacity electrolytic capacitors have poor high-frequency performance, so a smaller capacitor C3 is connected in parallel.

[0063] The D2 LED acts as an indicator light. When powered, the indicator light turns on, providing an indication. The R1 connected in series with the D2 LED is a current-limiting resistor to prevent high current from burning out the LED.

[0064] After being stepped down by the LM7805 step-down chip, the voltage is converted to +5V and used to power the STC15W408AS microcontroller. C5 and C6 are also filter capacitors used to filter ripple.

[0065] 2. Function button circuit such as Figure 8 and 10 As shown, including:

[0066] S1, S2, and S3 are three key circuits with different functions that have been defined in the program.

[0067] When S1 is pressed, the U3-7 pin of the microcontroller inputs a high level

[0068] When S2 is pressed, the U3-5 pin of the microcontroller inputs a high level

[0069] When S2 is pressed, the U3-4 pin of the microcontroller inputs a high level

[0070] After the corresponding pin of the microcontroller receives a high-level signal, the system processes and executes the corresponding action.

[0071] 3. Bluetooth module circuit such as Figure 8 and 11 As shown, including:

[0072] J2 is the on / off switch, which can control the on / off of the communication line between the Bluetooth module and the microcontroller;

[0073] M1 is a DL-20 Bluetooth module. The power supply ports are VCC and GND, and the two middle pins are communication ports.

[0074] 4.Mono amplifier module circuit such as Figure 8 and 12 As shown, including:

[0075] (1) WTN6 is a voice chip, and its power supply voltage is +5V;

[0076] The U4 is a WTN6 model. The WTN6 series is a high-performance, low-cost voice solution. It supports voice messages ranging from 20 to 170 seconds. These chips utilize advanced OTP (One-Time Programmable) technology, providing stable and reliable voice storage and playback capabilities.

[0077] (2)XPT8871

[0078] P1 is the XPT8871, an FM interference-free, class AB / D selectable power amplifier. At 5V operating voltage, it delivers a maximum drive power of 5W and total harmonic distortion noise (THD) within the audio range of less than 1%.

[0079] The application circuit is simple, requiring only a few external components and an integrated feedback resistor. The output does not require external coupling capacitors, boost capacitors, or a snubber network. It is suitable for portable systems requiring low volume and weight. It can be controlled to enter sleep mode, reducing power consumption.

[0080] The amplifier features an internal automatic thermal shutdown mechanism, stable operation, a gain-bandwidth product up to 2.5MHz, and unity-gain stability. The amplifier also includes built-in feedback resistors, and the amplifier's voltage gain can be adjusted by configuring peripheral parameters, thereby enabling speaker control. J4 is the speaker connector.

[0081] 5. Interface circuit such as Figure 8 and 13 As shown,

[0082] J5 and J6 are GND signal and VCC 5V signal respectively, which can provide 5V power supply to the outside;

[0083] P3 is an 8-pin connector port. The 7 pins of the microcontroller output signals through the socket to control the peripheral circuits.

[0084] According to the real-time monitoring system for vehicle operation status of the present application, it can be arranged or connected to different vehicle models, and the peripheral circuit is connected to the alarm signal acquisition control circuit board to collect sensor signals, and the Bluetooth module circuit of the acquisition board and the Bluetooth module circuit of the control board are used for wireless signal transmission so that the collected data information is transmitted to the alarm signal processing control circuit board, and then the voice information of the operation status is output through the monophonic power amplifier module circuit of the control board, so that the user can obtain the real-time operation status information of the vehicle in real time.

[0085] The above is a detailed introduction to the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

[0086] Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented. Of course, the above-listed situations are only examples, and the present invention is not limited thereto. Those skilled in the art should understand that other variations or simplifications of the technical solution of the present invention can be appropriately applied to the present invention and should be included in the scope of the present invention.

Claims

1. A real-time monitoring system for vehicle operation status, characterized in that: An alarm signal acquisition control circuit board and an alarm signal processing control circuit board are provided. The alarm signal acquisition control circuit board is provided with an acquisition board power supply circuit, an acquisition board function key circuit, an acquisition board Bluetooth module circuit, an acquisition board optocoupler control circuit, an acquisition board signal control detection circuit and an acquisition board interface circuit. The alarm signal processing control circuit board is provided with a control board power supply circuit, a control board function key circuit, a control board Bluetooth module circuit, a control board mono power amplifier module circuit and a control board interface circuit.

2. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The power supply in the acquisition board power supply circuit is an external input of +24V, which is converted into a +12V voltage after being stepped down by the LM7812 step-down chip U1, and then converted into a +5V voltage after being stepped down by the LM7805 step-down chip U2 to power the single-chip microcomputer; a filter capacitor C1 is provided at the input end of the acquisition board power supply circuit, and capacitors C2 and C3 are provided at the output end of the acquisition board power supply circuit to prevent oscillation and a decrease in voltage stabilization efficiency.

3. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The Bluetooth module circuit of the acquisition board is provided with an on-route switch button J8, and the on-route switch button J8 is arranged between the Bluetooth module J14 and the single-chip microcomputer.

4. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The acquisition board interface circuit is provided with several 3-pin connector ports that provide GND signals and VCC 5V signals, as well as a signal input port J7.

5. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The power supply in the control board power supply circuit is an external input +24V, which is converted into a +12V voltage after being stepped down by the LM7812 step-down chip U1, and then converted into a +5V voltage after being stepped down by the LM7805 step-down chip U2 to power the single-chip microcomputer; a filter capacitor C1 is provided at the input end of the control board power supply circuit, and capacitors C2 and C4 are provided at the output end of the control board power supply circuit to prevent oscillation and a decrease in voltage stabilization efficiency.

6. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The control panel Bluetooth module circuit is provided with an on-off switch button J2, and the on-off switch button J2 is arranged between the Bluetooth module M1 and the single-chip microcomputer.

7. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The control board monophonic power amplifier module circuit is provided with a WTN6 voice chip U4 and an XPT8871 power amplifier P1 connected thereto.

8. A real-time monitoring system for vehicle operation status according to claim 1, characterized in that: The control board interface circuit is provided with a GND signal port J5, a VCC 5V signal port J6 and an 8-pin connector port P3.

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