A geomagnetic monitor

Abstract

The utility model relates to a geomagnetic monitor, which includes a main control module, a geomagnetic dual-mode sensor, an auxiliary sensor, a communication module, and a power supply module connected to the main control module, wherein an activation circuit and a reset circuit are also included, wherein the geomagnetic dual-mode sensor and the auxiliary sensor are serially connected to the input end of the main control module, the output end of the main control module is connected to the communication module, the activation circuit and the reset circuit are connected to the main control module, and the power supply module supplies power to the geomagnetic dual-mode sensor, the auxiliary sensor, the communication module, and the activation and reset circuits. The local magnetic monitor can perform geomagnetic and radar detection simultaneously, and can supplement when one of them fails to maintain the function of the equipment; and can flexibly control the frequency of data upload, thereby improving the application flexibility of the equipment and reducing the power consumption of the equipment; at the same time, it expands the data positioning and temperature and humidity collection functions, enriching the functionality of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of detection technology and Internet of Things terminal equipment, and in particular to a geomagnetic monitor. Background Art

[0002] Smart city parking lots are composed of two parts: a geomagnetic monitor and an IoT cloud platform. The geomagnetic monitor is installed on the road to monitor whether there are vehicles entering or leaving the equipment, and cooperates with the IoT cloud platform to collect fees. Existing geomagnetic monitors have the following defects:

[0003] (1) The monitoring module is single and loses its detection function immediately when a fault occurs;

[0004] (2) There is a lack of activation and reset functions on the monitoring device terminal, and the remote IoT platform is required to agree to activation and reset, which results in poor delay and timeliness;

[0005] (3) The frequency of uploading the detection signal to the Internet is uncontrollable, resulting in a large amount of unnecessary data being uploaded in real time, causing high power consumption and rapid power consumption of the device;

[0006] (4) The functions are relatively simple, and generally only geomagnetic induction data is uploaded, resulting in low equipment utilization. Utility Model Content

[0007] The technical problem to be solved by the utility model is: to overcome the defects of the existing geomagnetic monitor, such as the single monitoring module leading to immediate failure due to faults, the lack of device terminal activation and reset functions, the uncontrollable communication upload frequency leading to high power consumption, and the single function, and to provide a geomagnetic monitor that can simultaneously perform geomagnetic and radar detection and supplement when one of them fails to maintain the function of the equipment; and can flexibly control the data upload frequency, thereby improving the application flexibility of the equipment and reducing the power consumption of the equipment; at the same time, it expands the data positioning and temperature and humidity collection functions, enriching the functionality of the equipment.

[0008] The local magnetic monitor includes a main control module, a geomagnetic dual-mode sensor, an auxiliary sensor, a communication module, and a power supply module connected to the main control module, wherein it also includes an activation circuit and a reset circuit. The geomagnetic dual-mode sensor and the auxiliary sensor are serially connected to the input end of the main control module, the output end of the main control module is connected to the communication module, the activation circuit and the reset circuit are connected to the main control module, and the power supply module supplies power to the geomagnetic dual-mode sensor, the auxiliary sensor, the communication module, and the activation and reset circuits.

[0009] Furthermore, the communication module includes a wireless communication module and a communication management module connected to the main control module. The wireless communication module adopts the 4G Quectel EC800E wireless module. The main control module is connected to the wireless communication module through the UART5_RX, UART5_TX, 4G_PYKEY, RST_WKUP, 4G_DTR, and 4G_PWR functional pin group. The main control module is connected to the communication management module through the GNSS_PWR, TXD_BD, and RXD_BD functional pin group and the MOTO_EN, BAT_EN, BAT_CHK, 8B20_EN, 18B20_DATA, Sensor_EN1, and Sensor_EN2 functional pin group.

[0010] Optimally, the auxiliary sensor includes a GPS module, and the GPS module is serially connected to the main control module.

[0011] Optimally, the auxiliary sensor also includes a temperature and humidity sensor, and the temperature and humidity sensor is serially connected to the main control module.

[0012] The utility model discloses a geomagnetic monitor, which overcomes the defects of the existing geomagnetic monitors such as single monitoring module leading to immediate failure due to faults, lack of device terminal activation and reset functions, uncontrollable communication upload frequency leading to high power consumption, and single function. It can simultaneously perform geomagnetic and radar detection, and supplement when one of them fails to maintain the function of the equipment; it can also flexibly control the data upload frequency, thereby improving the application flexibility of the equipment and reducing the power consumption of the equipment; at the same time, it expands the data positioning and temperature and humidity collection functions, enriching the functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following is a further description of the geomagnetic monitor of the utility model in conjunction with the accompanying drawings:

[0014] Figure 1 It is a wireframe diagram of the logical structure and connection principle of the local magnetic monitor;

[0015] Figure 2 It is a circuit diagram of the connection method between the communication module and the main control module of the local magnetic monitor.

[0016] In the figure:

[0017] 1-main control module, 2-geomagnetic dual-mode sensor, 3-auxiliary sensor, 4-communication module, 5-power supply module, 6-activation circuit, 7-reset circuit;

[0018] 31-GPS module, 32-temperature and humidity sensor; 41-wireless communication module, 42-communication management module. DETAILED DESCRIPTION

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] The technical solution of the utility model is further described below with specific embodiments, but the protection scope of the utility model is not limited to the following embodiments.

[0022] Implementation method 1: Figure 1 , 2 As shown, the local magnetic monitor includes a main control module 1, a geomagnetic dual-mode sensor 2, an auxiliary sensor 3, a communication module 4, and a power supply module 5 connected to the main control module 1, wherein an activation circuit 6 and a reset circuit 7 are also included. The geomagnetic dual-mode sensor 2 and the auxiliary sensor 3 are serially connected to the input end of the main control module 1, and the output end of the main control module 1 is connected to the communication module 4. The activation circuit 6 and the reset circuit 7 are connected to the main control module 1, and the power supply module 5 supplies power to the geomagnetic dual-mode sensor, the auxiliary sensor, the communication module, and the activation and reset circuits.

[0023] Implementation method 2: Local magnetic monitor The communication module 4 includes a wireless communication module 41 and a communication management module 42 connected to the main control module 1. The wireless communication module 41 adopts the 4G Quectel EC800E wireless module. The main control module 1 is connected to the wireless communication module 41 through the UART5_RX, UART5_TX, 4G_PYKEY, RST_WKUP, 4G_DTR, and 4G_PWR function pin group. The main control module 1 is connected to the communication management module 42 through the GNSS_PWR, TXD_BD, and RXD_BD function pin group and the MOTO_EN, BAT_EN, BAT_CHK, 8B20_EN, 18B20_DATA, Sensor_EN1, and Sensor_EN2 function pin group. As the range of core components, the main control module can adopt the minimum system circuit of STM32f105 and above MCU chips, the geomagnetic dual-mode sensor adopts SRR196 dual-mode integrated occupancy detection sensor, the communication management module is integrated on the EC800E_CNLE communication module, the activation circuit is integrated on the SIM32f105 minimum system circuit, and the reset circuit plug-in ASW15 is integrated on the circuit development board, and is used in conjunction with the plug-in analog switch CD4051BE. Through the communication management module, the data upload frequency of the wireless data transmission module can be adjusted on site or in the background, and then the power consumption of the whole machine can be controlled according to the installation area and specific situation. The remaining structures and components are as described in Implementation 1 and will not be repeated.

[0024] Implementation 3: Local magnetic monitor The auxiliary sensor 3 includes a GPS module 31, which is serially connected to the main control module 1. It is used to synchronously upload the positioning data and the sensing data of the geomagnetic dual-mode sensor, and then determine the location of the inspected vehicle that uploaded the data. The auxiliary sensor 3 also includes a temperature and humidity sensor 32, which is serially connected to the main control module 1. It is used to synchronously upload the sensing data and positioning data to expand and enrich the functionality of the terminal. The remaining structures and components are as described in Implementation 1 and will not be repeated.

[0025] During operation: install the device on the road, activate the circuit to directly activate the main control module, and indirectly activate the operation of other functional modules, monitor whether there is a vehicle driving in above the device, and collect the detection signal using the 3.3V independently powered geomagnetic dual-mode sensor. The geomagnetic module communicates with the main control module through the AT instruction set, and can echo through the radar module to complete the parking space entry and exit recognition while collecting data such as magnetic winding and radar distance. The collected data is uploaded through the EC800E module. After the upload is completed, the reset circuit resets each module to the initial state. The device combines radar and geomagnetism, so that when any module cannot be detected due to environmental problems, the device can complete data collection through another module; through the cooperation of the communication module and the reset circuit, the sensor can be remotely calibrated and controlled reset, which is especially suitable for remote management of vehicle entry and exit payment in urban toll parking lots.

[0026] The local magnetic monitor overcomes the defects of existing geomagnetic monitors such as single monitoring module leading to immediate failure, lack of device terminal activation and reset function, uncontrollable communication upload frequency leading to high power consumption, and single function. It can perform geomagnetic and radar detection simultaneously, and supplement when one of them fails to maintain the function of the equipment; it can flexibly control the data upload frequency, thereby improving the application flexibility of the equipment and reducing the power consumption of the equipment; at the same time, it expands the data positioning and temperature and humidity collection functions, enriching the functionality of the equipment.

[0027] The above description shows the main features, basic principles, and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments or embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the above embodiments or embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A geomagnetic monitor, characterized in that: The invention comprises a main control module (1), a geomagnetic dual-mode sensor (2) connected to the main control module (1), an auxiliary sensor (3), a communication module (4), and a power supply module (5), and further comprises an activation circuit (6) and a reset circuit (7). The geomagnetic dual-mode sensor (2) and the auxiliary sensor (3) are serially connected to the input end of the main control module (1); the output end of the main control module (1) is connected to the communication module (4); the activation circuit (6) and the reset circuit (7) are connected to the main control module (1); and the power supply module (5) supplies power to the geomagnetic dual-mode sensor, the auxiliary sensor, the communication module, and the activation and reset circuits.

2. The geomagnetic monitor according to claim 1, characterized in that: The communication module (4) comprises a wireless communication module (41) and a communication management module (42) connected to the main control module (1); the wireless communication module (41) adopts a 4G Quectel EC800E wireless module; the main control module (1) is connected to the wireless communication module (41) via a UART5_RX, UART5_TX, 4G_PYKEY, RST_WKUP, 4G_DTR, and 4G_PWR functional pin group; the main control module (1) is connected to the communication management module (42) via a GNSS_PWR, TXD_BD, and RXD_BD functional pin group and a MOTO_EN, BAT_EN, BAT_CHK, 8B20_EN, 18B20_DATA, Sensor_EN1, and Sensor_EN2 functional pin group.

3. The geomagnetic monitor according to claim 2, characterized in that: The auxiliary sensor (3) comprises a GPS module (31), and the GPS module (31) is serially connected to the main control module (1).

4. The geomagnetic monitor according to claim 3, characterized in that: The auxiliary sensor (3) also includes a temperature and humidity sensor (32), and the temperature and humidity sensor (32) is serially connected to the main control module (1).

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