CN209000160U

CN209000160U - A kind of anti-intrusion state Internet of Things monitoring device of towed well lid

Info

Publication number: CN209000160U
Application number: CN201821738473.1U
Authority: CN
Inventors: 王海军
Original assignee: BEIJING INFORMATION INFRASTRUCTURE CONSTRUCTION Co Ltd
Current assignee: BEIJING INFORMATION INFRASTRUCTURE CONSTRUCTION Co Ltd
Priority date: 2018-10-25
Filing date: 2018-10-25
Publication date: 2019-06-18
Anticipated expiration: 2028-10-25

Abstract

The utility model relates to internet of things field, especially a kind of anti-intrusion state Internet of Things monitoring device of towed well lid, including the well lid terminal on the inside of well lid is arranged in, the well lid terminal includes PCB main board, the PCB main board is connected with lithium battery, the input terminal of the PCB main board is connected with gravity accelerometer, and the output end of the PCB main board is connected with wireless telecommunications mould group, and the antenna in the wireless communication module and base station radio communicate to connect.After adopting the above structure, the anti-intrusion state Internet of Things monitoring device of the towed well lid of the utility model has the advantages that the high-precision low angle detection algorithm for towed well lid, the vibration bring low angle variation of well lid caused by extraneous factor can be filtered out, data variation caused by correct identification low angle open manhole cover, accuracy are high；Structure is simple, high reliablity.

Description

A kind of anti-intrusion state Internet of Things monitoring device of towed well lid

Technical field

The utility model relates to internet of things field, especially a kind of anti-intrusion state Internet of Things monitoring of towed well lid Device.

Background technique

In order to protect the fiber optic cable facility in fiber optic communications well, need to monitor the open state of well lid, discovery is illegally opened in time It opens, realizes anti-intrusion function.Current well lid monitoring device, using angular transducer by detect the angle value that starts of well lid come Judge whether well lid is opened.But for towed well lid, because the angle very little opened, and different landform, well lid are opened Angle change value it is different, the problem is that, well lid opening angle angle value is smaller, and erroneous judgement rate is high, for pulling well lid Low-angle movement can not correctly judge, be easy to fail to report, error is larger.Meanwhile radio transmission apparatus using GPRS NBIOT, power consumption Excessive, battery needs to be replaced frequently.

207685870 U of Chinese utility model patent CN discloses a kind of well lid folding detector based on Internet of Things, packet Shell and flexible link are included, circuit board, power supply and communication antenna are installed in the shell, are provided with microcontroller on the circuit board Device, tongue tube and telecommunication circuit, the microcontroller respectively with tongue tube, telecommunication circuit and power electric connection, communication electricity Road is electrically connected with communication antenna, first through hole is provided on the shell, the first end of the flexible link is stretched across first through hole Enter in shell, and the flexible link and first through hole clearance fit, the first end of the flexible link are equipped with magnet, the magnet Incude with tongue tube and connect, the second end side surface of the flexible link is for squeezing the bottom that well lid is arranged in.

Summary of the invention

The utility model technical issues that need to address are to provide a kind of low-angle shifting that can effectively judge to pull well lid The dynamic and low False Rate anti-intrusion state Internet of Things monitoring device of towed well lid.

In order to solve the above technical problems, the anti-intrusion state Internet of Things monitoring dress of a kind of towed well lid of the utility model It sets, including the well lid terminal on the inside of well lid is arranged in, the well lid terminal includes PCB main board, the PCB main board and lithium battery phase Connection, the input terminal of the PCB main board are connected with gravity accelerometer, and the output end of the PCB main board is connected with wirelessly Communication module group, antenna and base station radio in the wireless communication module communicate to connect.

Preferably, the gravity accelerometer is three axle Gravity accelerometers.

Preferably, the PCB main board includes chip U1, and 9 feet and 10 feet of the chip U1 are connected with power supply VCC, institute 9 feet and 10 feet for stating chip U1 are grounded by the parallel circuit of capacitor C6 and electrolytic capacitor C5；1 foot of the chip U1 passes through electricity Resistance R1 is connected with power supply VCC, and 2 feet of the chip U1 are connected by resistance R2 with power supply VCC, 3 feet of the chip U1 It is grounded by resistance R4,4 feet of the chip U1 are connected by resistance R3 with power supply VCC, 11 feet and 12 of the chip U2 Foot is connected with wireless communication module, and 11 feet of the chip U1 are grounded by capacitor C14, and 12 feet of the chip U1 pass through electricity Hold C15 ground connection.

Preferably, the wireless communication module includes chip M1, and 3 feet of the chip M1 are grounded by resistance R22, described 6 feet of chip M1 are grounded by capacitor C1, and 7 feet of the chip M1 are connected with 11 feet of chip U1,8 feet of the chip M1 It is connected with 12 feet of chip U1,12 feet of the chip M1 are connected by inductance L1 with antenna, one end of the inductance L1 It is grounded by capacitive reactance circuit Cr1, the other end is grounded by capacitive reactance circuit Cr2；16 feet of the chip M1 pass through resistance R21 and electricity Source VCC is connected, and 22 feet of the chip M1 are connected with power supply VCC, and 22 feet of the chip M1 are connect by electrolytic capacitor C8 Ground.

Preferably, the antenna is RF antenna.

Preferably, waterproof case is provided on the outside of the well lid terminal.

After adopting the above structure, the anti-intrusion state Internet of Things monitoring device of the towed well lid of the utility model has following The utility model has the advantages that

1,3 axis gravity accelerometers, MCU microprocessor, LORAWAN low-consumption wireless communication module group combine linkage Method reduces power supply power consumption, reaches power saving target, and battery-powered time is up to 3 years or more；

2, for the high-precision low angle detection algorithm of towed well lid, well caused by extraneous factor can be filtered out

Lid vibration bring low angle variation, correct to identify data variation caused by low angle open manhole cover, accuracy is high；

3, alarm threshold value auto-initiation for the first time when installation, realizes threshold value auto-initiation, acceleration of gravity mould group is to well The change in location of lid carries out 3 axis data samplings, and according to the variation of multiple sampling value, auto computing goes out the alarm threshold value of the well lid. The threshold value is according to the level angle adjust automatically of infield；

4, LORAWAN low-consumption wireless communication module group is low in energy consumption, strong antijamming capability, guarantees signal reliable transmission；

5, structure is simple, high reliablity.

Detailed description of the invention

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Fig. 1 is the structural schematic diagram of the anti-intrusion state Internet of Things monitoring device of the utility model towed well lid.

Fig. 2 is the utility model well lid terminal scheme of installation.

Fig. 3 is the circuit diagram of the utility model PCB main board.

Fig. 4 is the circuit diagram of the utility model wireless telecommunications mould group.

In figure: 101 be antenna, and 102 be PCB main board, and 103 be lithium battery, and 104 be waterproof case, and 1 is well lid terminal, and 2 are Well lid, 3 be well lid pedestal, and 4 be base station

Specific embodiment

As depicted in figs. 1 and 2, the anti-intrusion state Internet of Things monitoring device of a kind of towed well lid of the utility model, packet The well lid terminal 1 that 2 inside of well lid is set is included, well lid 2 is mounted on well lid pedestal 3, is provided on the outside of the well lid terminal 1 anti- Water shell 104.The well lid terminal 1 includes PCB main board 102, and the PCB main board 102 is connected with lithium battery 103, for giving PCB main board 101 is powered, and the input terminal of the PCB main board 102 is connected with gravity accelerometer, gravity in present embodiment Acceleration transducer is three axle Gravity accelerometers.The output end of the PCB main board is connected with wireless telecommunications mould group, this reality It applies wireless telecommunications mould group in mode and uses LORAWAN low-consumption wireless communication module group, LORAWAN low-consumption wireless communication module group passes Defeated distance is remote, strong antijamming capability, guarantees signal reliable transmission.Antenna 101 and base station 4 in the wireless communication module is wireless Communication connection.Antenna 101 is RF antenna in present embodiment, for emitting wireless signal, using high-gain aerial.

As shown in figure 3, the PCB main board 102 includes chip U1,9 feet and 10 feet of the chip U1 are connected with power supply VCC It connects, 9 feet and 10 feet of the chip U1 are grounded by the parallel circuit of capacitor C6 and electrolytic capacitor C5；1 foot of the chip U1 It is connected by resistance R1 with power supply VCC, 2 feet of the chip U1 are connected by resistance R2 with power supply VCC, the chip U1 3 feet be grounded by resistance R4,4 feet of the chip U1 are connected by resistance R3 with power supply VCC, 11 feet of the chip U2 It is connected with 12 feet with wireless communication module, 11 feet of the chip U1 are grounded by capacitor C14, and 12 feet of the chip U1 are logical Cross capacitor C15 ground connection.

As shown in figure 4, the wireless communication module includes chip M1,3 feet of the chip M1 are grounded by resistance R22, 6 feet of the chip M1 are grounded by capacitor C1, and 7 feet of the chip M1 are connected with 11 feet of chip U1, the chip M1 8 feet be connected with 12 feet of chip U1,12 feet of the chip M1 are connected by inductance L1 with antenna, the inductance L1's One end is grounded by capacitive reactance circuit Cr1, and the other end is grounded by capacitive reactance circuit Cr2；16 feet of the chip M1 pass through resistance R21 It is connected with power supply VCC, 22 feet of the chip M1 are connected with power supply VCC, and 22 feet of the chip M1 pass through electrolytic capacitor C8 ground connection.

The working principle of the utility model is as follows: first when first installed, realizing threshold value initialization, acceleration of gravity passes Sensor carries out 3 axis data samplings to the change in location of well lid, and according to the variation of multiple sampling value, auto computing goes out alarm threshold value. Enter monitoring state, the work real-time monitoring variation of 3 axis gravity accelerometers, the MCU microprocessor (core of PCB main board later Piece U1) and LORAWAN low-consumption wireless communication module group suspend mode, save electric power；When monitoring numerical value variation, 3 axis acceleration of gravity Sensor module filtered out by algorithm extraneous factor generation well lid vibration caused by data, then compare numerical value whether be more than Threshold value, if it exceeds the threshold, being waken up to MCU microprocessor and LORAWAN wireless low-power consumption communication module group, by MCU microprocessor Alert data is formed, result is issued by network by LORAWAN wireless low-power consumption communication module group, after sending 3 alarm signals, MCU microprocessor and the power-off of LORAWAN wireless low-power consumption communication module group, are continued to monitor by 3 axis gravity accelerometer mould groups, Save electric power.

Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the original of the utility model Reason and essence, the protection scope of the utility model are only limited by the claims that follow.

Claims

1. a kind of anti-intrusion state Internet of Things monitoring device of towed well lid, it is characterised in that: including being arranged on the inside of well lid Well lid terminal, the well lid terminal includes PCB main board, and the PCB main board is connected with lithium battery, the input of the PCB main board End is connected with gravity accelerometer, and the output end of the PCB main board is connected with wireless telecommunications mould group, the wireless telecommunications mould Antenna and base station radio in block communicate to connect.

2. the anti-intrusion state Internet of Things monitoring device of a kind of towed well lid described in accordance with the claim 1, it is characterised in that: institute Stating gravity accelerometer is three axle Gravity accelerometers.

3. the anti-intrusion state Internet of Things monitoring device of a kind of towed well lid described in accordance with the claim 1, it is characterised in that: institute Stating PCB main board includes chip U1, and 9 feet and 10 feet of the chip U1 are connected with power supply VCC, 9 feet and 10 of the chip U1 Foot is grounded by the parallel circuit of capacitor C6 and electrolytic capacitor C5；1 foot of the chip U1 is connected by resistance R1 with power supply VCC It connects, 2 feet of the chip U1 are connected by resistance R2 with power supply VCC, and 3 feet of the chip U1 are grounded by resistance R4, institute 4 feet for stating chip U1 are connected by resistance R3 with power supply VCC, 11 feet and 12 feet and the wireless communication module phase of the chip U2 Connection, 11 feet of the chip U1 are grounded by capacitor C14, and 12 feet of the chip U1 are grounded by capacitor C15.

4. the anti-intrusion state Internet of Things monitoring device of a kind of towed well lid described in accordance with the claim 3, it is characterised in that: institute Stating wireless communication module includes chip M1, and 3 feet of the chip M1 are grounded by resistance R22, and 6 feet of the chip M1 pass through electricity Hold C1 ground connection, 7 feet of the chip M1 are connected with 11 feet of chip U1,12 foot phases of 8 feet and chip U1 of the chip M1 Connection, 12 feet of the chip M1 are connected by inductance L1 with antenna, and one end of the inductance L1 is connect by capacitive reactance circuit Cr1 Ground, the other end are grounded by capacitive reactance circuit Cr2；16 feet of the chip M1 are connected by resistance R21 with power supply VCC, described 22 feet of chip M1 are connected with power supply VCC, and 22 feet of the chip M1 are grounded by electrolytic capacitor C8.

5. according to a kind of anti-intrusion state Internet of Things monitoring device of towed well lid of any of claims 1-4, Be characterized in that: the antenna is RF antenna.

6. the anti-intrusion state Internet of Things monitoring device of a kind of towed well lid described in accordance with the claim 1, it is characterised in that: institute It states and is provided with waterproof case on the outside of well lid terminal.