Monitoring management system for municipal roads

Abstract

The utility model relates to the technical field of road monitoring, in particular to a monitoring management system for municipal roads, which comprises a roadbed parameter acquisition unit, a wireless communication unit, a main control unit, a positioning unit and a power supply management unit, and is characterized in that the roadbed parameter acquisition unit, the wireless communication unit and the positioning unit are electrically connected with the main control unit; the power management unit is used for supplying power to the roadbed parameter acquisition unit, the wireless communication unit, the main control unit and the positioning unit, the roadbed parameter acquisition unit is used for monitoring pressure and soil humidity parameters of a roadbed, and the positioning unit is used for acquiring position information of acquisition points; and the main control unit transmits the pressure and soil humidity parameters of the roadbed and the position information of the acquisition points to the monitoring management platform through the wireless communication unit. And real-time monitoring and remote management of municipal roads are realized. Through accurate data acquisition, processing and transmission and low-power-consumption design, the efficiency and accuracy of municipal road monitoring are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road monitoring technical field especially relates to a monitoring management system for municipal road. BACKGROUND

[0002] In the long-term use process of municipal road, with the increase of service life, the road structure may appear collapse or subsidence and other safety hazards, the existing municipal road monitoring device low degree of intellectualization, low efficiency may cause major loss of property and life.

[0003] At present, the following deficiencies exist in the monitoring management of municipal roads:

[0004] 1) At present, the monitoring of road settlement mainly relies on artificial regular patrol, this method is not only inefficient, but also difficult to guarantee timeliness and accuracy. Without deploying enough automatic monitoring equipment to continuously track the road surface changes, it is impossible to master the road conditions in real time;

[0005] 2) Some existing monitoring devices have high power consumption, which requires frequent battery replacement or connection to external power supply, which increases maintenance cost and limits its application in remote areas;

[0006] 3) The instability and delay in data transmission process will affect the speed of information update, so that the manager cannot obtain the latest road conditions in the first time, and then affect the timeliness of early warning and emergency response. UTILITY MODEL CONTENT

[0007] The utility model provides a kind of monitoring management system for municipal road, by integrating multiple functional units, realize the real-time monitoring and remote management of municipal road. Through accurate data acquisition, processing and transmission, and low-power design, the efficiency and accuracy of municipal road monitoring are improved, the maintenance cost is reduced, and strong guarantee is provided for the long-term stable operation of municipal road.

[0008] In order to realize the purpose of the utility model, the technical scheme adopted is: a kind of monitoring management system for municipal road, including roadbed parameter acquisition unit, wireless communication unit, main control unit, positioning unit and power management unit, roadbed parameter acquisition unit, wireless communication unit and positioning unit are electrically connected with main control unit, power management unit is used to power supply for roadbed parameter acquisition unit, wireless communication unit, main control unit and positioning unit, roadbed parameter acquisition unit is used to monitor the pressure of roadbed, soil humidity parameter, positioning unit is used to obtain the position information of collection point, main control unit transmits the pressure of roadbed, soil humidity parameter and the position information of collection point to monitoring management platform through wireless communication unit.

[0009] As an optimization scheme of the utility model, the main control unit includes processor U1, and the processor U1 is STM32L431RCT6.

[0010] As an optimization scheme of the utility model, the roadbed parameter acquisition unit includes a roadbed pressure acquisition circuit and a soil humidity acquisition circuit.

[0011] As an optimization scheme of the utility model, the roadbed pressure acquisition circuit includes a diffusion silicon pressure sensor.

[0012] As an optimization scheme of the utility model, the soil humidity acquisition circuit includes a soil humidity sensor U3, and the fourth pin of the soil humidity sensor U3 is connected to the thirty-third pin of the processor U1.

[0013] As an optimization scheme of the utility model, the positioning unit includes a GPS module U4, the third pin of the GPS module U4 is connected to the thirty-ninth pin of the processor U1, and the fourth pin of the GPS module U4 is connected to the fortieth pin of the processor U1.

[0014] As an optimization scheme of the utility model, the wireless communication unit includes an NB-IoT chip U5, a capacitor C35, a capacitor C36, a resistor R27, a light-emitting diode LED3, an NPN triode Q5, and a resistor R36, the capacitor C35 and the capacitor C36 are connected in parallel between the second pin of the NB-IoT chip U5 and the ground, the resistor R27 and the light-emitting diode LED3 are connected in series between the second pin of the NB-IoT chip U5 and the collector of the NPN triode Q5, the resistor R36 is connected between the base of the NPN triode Q5 and the fourteenth pin of the NB-IoT chip U5, the emitter of the NPN triode Q5 is grounded, the thirty-fifth pin of the NB-IoT chip U5 is connected to the forty-third pin of the processor U1, and the thirty-sixth pin of the NB-IoT chip U5 is connected to the forty-fourth pin of the processor U1.

[0015] As an optimization scheme of the utility model, the power management unit includes a low-dropout linear voltage stabilizing chip U6, a capacitor C38, a capacitor C37, and a capacitor C39, the second pin of the low-dropout linear voltage stabilizing chip U6 is grounded through the capacitor C38, and the fourth pin of the low-dropout linear voltage stabilizing chip U6 is grounded through the capacitor C38, the capacitor C37, and the capacitor C39 connected in parallel.

[0016] The utility model has positive effect: 1) the utility model through integrated roadbed parameter acquisition unit, including roadbed pressure acquisition circuit and soil humidity acquisition circuit, has realized the real time monitoring to the roadbed pressure and soil humidity under municipal road. Compared with traditional artificial periodic inspection, this kind of automatic monitoring mode not only has improved monitoring efficiency, but also can ensure the timeliness and accuracy of data, helps to discover and prevent road safety hazards in time;

[0017] 2) The utility model discloses a low power consumption design is adopted to the system, and the power supply is optimized through power management unit, prolongs the working life of system, and the frequency of battery replacement or external power connection is reduced, thereby reduce the maintenance cost. Meanwhile, the wireless communication unit adopts the NB-IoT technology, has extensive coverage and low cost characteristics, and further reduces the operation cost of system.

[0018] 3) The utility model discloses wireless communication unit utilizes the data transmission of NB-IoT technology, has the high stability and reliability, effectively avoids the instability and delay problem in the data transmission process. This ensures that the management personnel can obtain the latest road condition information in the first time, improves the timeliness of early warning and emergency response.

[0019] 4) The utility model discloses the combination of main control unit and wireless communication unit, and the system can transmit monitoring data to the monitoring management platform in real time, realizes the remote management and intelligent monitoring of municipal road. Management personnel can check road condition at any time and any place, and timely take countermeasures, which helps to reduce the occurrence of road collapse, subsidence and other safety hazards. Improve the intelligent level of road management. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0021] Figure 1 It is the principle diagram of the utility model;

[0022] Figure 2 It is the circuit principle drawing of main control unit of the utility model;

[0023] Figure 3 It is the circuit principle drawing of soil humidity acquisition circuit of the utility model;

[0024] Figure 4 It is the circuit principle drawing of positioning unit of the utility model;

[0025] Figure 5 It is the circuit principle drawing of wireless communication unit of the utility model;

[0026] Figure 6 It is the circuit principle drawing of power management unit of the utility model;

[0027] Among them: 1, subgrade parameter acquisition unit, 2, wireless communication unit, 3, main control unit, 4, positioning unit, 5, power management unit. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the patent embodiment clearer, the technical scheme in the patent embodiment will be described clearly and completely in combination with the drawings in the patent embodiment.

[0029] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the patent nor its application or uses.

[0030] It is to be noted that the terms used herein are merely for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the patent.

[0031] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. It is to be understood that the various embodiments can include interchangeable steps and / or components known to those of skill in the art. In addition, any reference to the use of terms such as "preferably," "preferred," "desired," "in some embodiments," "in other embodiments," or "in other implementations" is intended to mean that the particular item is an example of embodiments useful in other embodiments or implementations but not a limitation of other embodiments or implementations. Thus, use of such terms is not intended to refer to the preferred or desired embodiment or "to form the preferred embodiment." Other embodiments will no doubt appear to those of skill in the art upon reading the foregoing description. The principal features of the application can be implemented to realize the objects and applications of the application. The scope of the application should be determined by a reasonable interpretation of the appended claims and the full scope of equivalents to which the claims are entitled.

[0032] As shown in Figure 1 The utility model discloses a kind of monitoring management systems for municipal road, including roadbed parameter acquisition unit 1, wireless communication unit 2, main control unit 3, positioning unit 4 and power management unit 5, roadbed parameter acquisition unit 1, wireless communication unit 2 and positioning unit 4 are all with main control unit 3 Electric connection, power management unit 5 is used to power supply for roadbed parameter acquisition unit 1, wireless communication unit 2, main control unit 3 and positioning unit 4, roadbed parameter acquisition unit 1 is used to monitor the pressure of roadbed, soil humidity parameter, positioning unit 4 is used to obtain the position information of collection point, and main control unit 3 passes through wireless communication unit 2 Transmission to monitoring management platform with the pressure of roadbed, soil humidity parameter and the position information of collection point.

[0033] As shown in Figure 2 Main control unit 3 includes processor U1, and processor U1 is STM32L431RCT6. Wherein, STM32L431RCT6 has low power mode, 3 SPI ports, 3 I2C interfaces, 4 UART interfaces, 52 IO ports, 1 SDMMC, can satisfy functional demand and subsequent functional upgrade needs.

[0034] The roadbed parameter acquisition unit 1 includes a roadbed pressure acquisition circuit and a soil humidity acquisition circuit. The roadbed pressure acquisition circuit includes a diffusion silicon pressure sensor. The working principle of the diffusion silicon pressure sensor is to be connected to two force-sensitive sensing elements through two RS485 signal lines. When the external surface pressure changes, the value of the corresponding internal capacitor will change. Since the capacitance value is proportional to the surface pressure value, the pressure on both sides is different. Then, through the subsequent addition of the oscillation and demodulation part, it is converted into a signal proportional to the pressure, and the pressure value of the roadbed is obtained. By analyzing the change of the roadbed pressure, the abnormal pressure or overload condition of the road can be found in time, which helps to prevent damage to the road caused by long-term heavy pressure or improper use. The diffusion silicon pressure sensor selected is All Sensors DLHR Series, which has the characteristics of low power consumption, fast response time, and provides analog and digital output options. The working voltage is 3.3V-5V.

[0035] As shown in Figure 3 The soil humidity acquisition circuit includes a soil humidity sensor U3, and the 4th pin of the soil humidity sensor U3 is connected to the 33rd pin of the processor U1. The soil humidity sensor U3 is an FC-28 soil humidity sensor. The FC-28 soil humidity sensor converts the detected resistance change into an electrical signal for output. The sensor has two modes of analog output (AO) and digital output (DO). The analog output is a continuously changing voltage signal related to soil humidity, and the size of the voltage value reflects the different degrees of soil humidity. The greater the humidity, the higher the voltage value (the specific voltage and humidity correspondence needs to be determined according to the characteristics of the sensor and actual test). The digital output is to compare the analog signal with the set threshold value through a comparator (usually an LM393 chip), and then output a high or low level signal to indicate whether the soil humidity exceeds the set threshold. The analog output mode is selected, and the working voltage is 3.3-5V. The monitoring of soil humidity helps to predict problems such as roadbed settlement or cracking caused by excessive or insufficient water, so as to take timely maintenance measures.

[0036] As shown in Figure 4As shown, the positioning unit 4 includes a GPS module U4, the 3rd pin of the GPS module U4 is connected with the 39th pin of the processor U1, and the 4th pin of the GPS module U4 is connected with the 40th pin of the processor U1. Among them, the GPS module U4 is a VK2828U7G5LF type GPS signal receiving module, which adopts a high-sensitivity signal receiving antenna and can effectively receive the 1575.42MHz civil frequency band of the GPS satellite positioning system. After receiving effective data and processing, the VK2828U7G5LF type GPS signal receiving module outputs standard NMEA-0183 data format externally, which contains time, position, ground speed information, etc. The working voltage is +3.5V to +5.0V.

[0037] As shown in Figure 5 As shown, the wireless communication unit 2 includes an NB-IoT chip U5, a capacitor C35, a capacitor C36, a resistor R27, a light-emitting diode LED3, an NPN triode Q5, a resistor R36, the capacitor C35 and the capacitor C36 are connected in parallel between the 2nd pin of the NB-IoT chip U5 and the ground, the resistor R27 and the light-emitting diode LED3 are connected in series between the 2nd pin of the NB-IoT chip U5 and the collector of the NPN triode Q5, the resistor R36 is connected between the base of the NPN triode Q5 and the 14th pin of the NB-IoT chip U5, the emitter of the NPN triode Q5 is grounded, the 35th pin of the NB-IoT chip U5 is connected with the 43rd pin of the processor U1, and the 36th pin of the NB-IoT chip U5 is connected with the 44th pin of the processor U1. The 35th and 36th pins of the NB-IoT chip U5 are serial interfaces, RXD is a receiving data interface, TXD is a sending data interface, Q5 is an NPN triode used as a switch to control the work of the NB-IoT module. LED3 is used to indicate the working state of the circuit, and NB-IoT is a kind of Internet of Things technology specially designed for low-power wide-area network (LPWAN). It has the characteristics of wide coverage, supporting a large number of connections, low cost and low power consumption.

[0038] As shown in Figure 6As shown, the power management unit 5 includes a low dropout linear regulator chip U6, a capacitor C38, a capacitor C37, and a capacitor C39, the 2nd pin of the low dropout linear regulator chip U6 is grounded through the capacitor C38, and the 4th pin of the low dropout linear regulator chip U6 is grounded through the capacitor C38, the capacitor C37, and the capacitor C39 in parallel. The low dropout linear regulator chip U6 is an SPX1117-3.3 low dropout linear regulator chip that reduces the 5V voltage to 3.3V. Unlike the DC / DC conversion chip, the low dropout linear regulator is more suitable for a low dropout voltage and small output current scenario. The output ripple of this type of chip is smaller than that of the DC / DC conversion chip. Between the output voltage and the reference ground, a 47uF tantalum capacitor, a 10uF tantalum capacitor, and a 100nF ceramic capacitor are sequentially added to play a filtering role. The power management unit 5 provides 5V and 3.3V for power supply of each unit.

[0039] The functions of the utility model are as follows:

[0040] Roadbed parameter acquisition:

[0041] The roadbed parameter acquisition unit monitors the roadbed pressure and soil moisture under the municipal road in real time through the roadbed pressure acquisition circuit and the soil moisture acquisition circuit. The roadbed pressure acquisition circuit uses a diffusion silicon pressure sensor. When the external surface pressure changes, the value of the internal capacitor changes accordingly, and then it is converted into a signal proportional to the pressure. The soil moisture acquisition circuit converts the detected soil resistance change into an electrical signal output through a soil moisture sensor, reflecting the change in soil moisture.

[0042] Data collection and processing:

[0043] The main control unit, as the core of the system, is responsible for receiving data from the roadbed parameter acquisition unit and performing preliminary processing. The main control unit uses an STM32L431RCT6 processor, which has low power consumption and high performance, and can meet the needs of real-time data processing and transmission of the system.

[0044] Precise positioning:

[0045] The positioning unit obtains the accurate position information of the collection point through the GPS module, providing geographical position reference for the monitoring and management platform. This helps management personnel accurately understand the location of road condition occurrence and take timely response measures.

[0046] Wireless communication:

[0047] The wireless communication unit uses NB-IoT technology to transmit the data processed by the main control unit (including roadbed pressure, soil moisture, and position information) to the monitoring and management platform. NB-IoT technology has the characteristics of wide coverage, support for a large number of connections, low cost, and low power consumption, and is very suitable for remote monitoring of municipal roads.

[0048] Power management:

[0049] The power management unit provides stable power supply for the whole system, and ensures the normal work of each functional unit. The input voltage is reduced to 3.3V required by the system through a low-dropout linear voltage stabilizing chip, and the ripple of the output voltage is reduced through a filter capacitor, thereby improving the stability of the system.

[0050] The above-described specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above-described specific embodiments are merely specific embodiments of the present application and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A monitoring management system for municipal roads, characterized by: It comprises a roadbed parameter acquisition unit (1), a wireless communication unit (2), a main control unit (3), a positioning unit (4) and a power management unit (5), the roadbed parameter acquisition unit (1), the wireless communication unit (2) and the positioning unit (4) are electrically connected with the main control unit (3), the power management unit (5) is used for powering the roadbed parameter acquisition unit (1), the wireless communication unit (2), the main control unit (3) and the positioning unit (4), the roadbed parameter acquisition unit (1) is used for monitoring the pressure and soil humidity parameters of the roadbed, the positioning unit (4) is used for acquiring the position information of the collection point, and the main control unit (3) transmits the pressure and soil humidity parameters of the roadbed and the position information of the collection point to the monitoring management platform through the wireless communication unit (2).

2. A monitoring management system for municipal roads as claimed in claim 1 wherein: The main control unit (3) comprises a processor U1, and the processor U1 is an STM32L431RCT6.

3. A monitoring management system for municipal roads as claimed in claim 2 wherein: The roadbed parameter acquisition unit (1) comprises a roadbed pressure acquisition circuit and a soil humidity acquisition circuit.

4. A monitoring management system for municipal roads as claimed in claim 3 wherein: The roadbed pressure acquisition circuit comprises a diffused silicon pressure sensor.

5. A monitoring management system for municipal roads as claimed in claim 3 wherein: The soil humidity acquisition circuit comprises a soil humidity sensor U3, and the fourth pin of the soil humidity sensor U3 is connected with the thirty-third pin of the processor U1.

6. A monitoring management system for municipal roads as claimed in claim 3 wherein: The positioning unit (4) comprises a GPS module U4, the third pin of the GPS module U4 is connected with the thirty-ninth pin of the processor U1, and the fourth pin of the GPS module U4 is connected with the fortieth pin of the processor U1.

7. A monitoring management system for municipal roads as claimed in claim 3 wherein: The wireless communication unit (2) comprises an NB-IoT chip U5, a capacitor C35, a capacitor C36, a resistor R27, a light-emitting diode LED3, an NPN triode Q5 and a resistor R36, the capacitor C35 and the capacitor C36 are connected in parallel between the second pin of the NB-IoT chip U5 and the ground, the resistor R27 and the light-emitting diode LED3 are connected in series between the second pin of the NB-IoT chip U5 and the collector of the NPN triode Q5, the resistor R36 is connected between the base of the NPN triode Q5 and the fourteenth pin of the NB-IoT chip U5, the emitter of the NPN triode Q5 is grounded, the thirty-fifth pin of the NB-IoT chip U5 is connected with the forty-third pin of the processor U1, and the thirty-sixth pin of the NB-IoT chip U5 is connected with the forty-fourth pin of the processor U1.

8. A monitoring management system for municipal roads as claimed in claim 3 wherein: The power management unit (5) comprises a low-dropout linear voltage stabilizing chip U6, a capacitor C38, a capacitor C37 and a capacitor C39, the second pin of the low-dropout linear voltage stabilizing chip U6 is grounded through the capacitor C38, and the fourth pin of the low-dropout linear voltage stabilizing chip U6 is grounded through the parallel capacitor C38, capacitor C37 and capacitor C39.

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