CN208383783U - A kind of detection device of inspection well cover breakage - Google Patents
A kind of detection device of inspection well cover breakage Download PDFInfo
- Publication number
- CN208383783U CN208383783U CN201820957437.8U CN201820957437U CN208383783U CN 208383783 U CN208383783 U CN 208383783U CN 201820957437 U CN201820957437 U CN 201820957437U CN 208383783 U CN208383783 U CN 208383783U
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- China
- Prior art keywords
- pmos tube
- detection
- inspection well
- well cover
- concentric circles
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Abstract
The utility model discloses a kind of detection devices of inspection well cover breakage.The characteristics of detection device, is that detection line is arranged in concentric circles, the concentric circles curls up inside since an external-connected port, and the head and the tail of close concentric circles are connected to cambered surface with detection line, innermost layer detection line is converted into inflection point, it is ensured that another external-connected port is on the outside of the vertex of outermost layer cambered surface；The electricity routing sensor, PMOS tube and voltage source VCCIt is connected in series, the external-connected port and voltage source V of the sensorCCIt is connected, another external-connected port is connected with the grid G of PMOS tube, the source S and voltage source V of PMOS tubeCCIt is connected, the grid G of the PMOS tube passes through diode D1Ground connection, the diode D1Cathode it is upward, the drain D of the PMOS tube passes through diode D all the way2Ground connection, another way connect Schmidt trigger ST outward.This detection device save the cost, detection is accurate, and can provide detection in real time.
Description
Technical field
The utility model relates to manhole cover damage detection fields, and in particular to a kind of detection device of inspection well cover breakage.
Background technique
Urban ground inspection well cover is after breakage, if cannot be replaced in time, can leave to pedestrian and vehicular traffic huge
Big security risk, even can threat to life when serious.Using manhole cover damage detection device of the invention, may be implemented first
Time sends the breakage alarm information of well lid to control centre, and requests to replace, to ensure that public's person to the greatest extent
And property safety.
Existing technology is mainly segmented into two major classes to the detection of inspection well cover breakage.One kind is made after inspection well cover is damaged
With the dedicated inspection well cover of redesign, such as: CN 106841327 A of 105201014 A and CN passes through net preset inside well lid
The wire or metallic film of trellis or wave convoluted are as breakage sensor, after manhole cover damage, corresponding position
Metallic film or wire will be broken therewith, in this way by the presence or absence of external interface voltage it is determined that well lid whether there is or not broken
Damage.Another kind of is to carry out damage testing to well lid by adding sensor in well lid bottom surface, and such as: 206440654 U of CN is used
Parallel metallic film item is attached to well lid bottom surface, then judges that well lid has with the on-off of the method for digital circuit detection metal strip
Without breakage.The circuit diagram of the patent disclosure of notification number CN206440654U as shown in Figure 1, he the characteristics of be using conductive film item
It is pasted onto well lid bottom surface and constitutes manhole cover damage detection sensor.For the above-mentioned prior art, disadvantage is as follows: 1, needing using special
Well lid goes to replace existing well lid, and the well lid being replaced will cause the wasting of resources；2, the investment again of another aspect well lid,
Increase engineering cost；3, it just needs to add a detection circuit per more films, improves circuit complexity；4, detection circuit
Alive always with colorimetric sensor films, consume the energy of power supply, be unfavorable for promoted battery power supply class detection system it is standby when
Between；5, it cannot be detected well for being parallel to the breakage of detection film.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of low cost, super low-power consumption, energy in real time
Detect the detection device of inspection well cover breakage.
A kind of detection device of inspection well cover breakage, including inspection well cover, the sensor set on the inspection well cover back side, and with sensing
The circuit that device is connected, detection line of the sensor by being arranged in concentric circles and external-connected port positioned at detection line both ends,
The concentric circles curls up inside since an external-connected port, and the head and the tail of close concentric circles are connected to cambered surface with detection line, most interior
Layer detection line is converted into inflection point, it is ensured that another external-connected port is on the outside of the vertex of outermost layer cambered surface；The electricity routing sensor,
PMOS tube and voltage source VCCIt is connected in series, the external-connected port and voltage source V of the sensorCCIt is connected, another external connection end
Mouth is connected with the grid G of PMOS tube, the source S and voltage source V of PMOS tubeCCIt is connected, the grid G of the PMOS tube passes through diode
D1Ground connection, the diode D1Cathode it is upward, the drain D of the PMOS tube passes through diode D all the way2Ground connection, another way are outside
Connect Schmidt trigger ST.
It is that the detection line is by conductive layer and the insulating layer for wrapping up conductive layer as improved；The conductive layer is copper wire
Or conductive tape.
It is that the detection line is electrically conductive graphite paper as improved.
It is that the concentric circles is equidistant or non-equidistant concentric circles as improved.
The detection method of the detection device of above-mentioned inspection well cover breakage are as follows: when inspection well cover is intact, detection conducting wire conducting, PMOS
The grid G of pipe is high level VCC, PMOS tube is in an off state, and drain D is low level, the Schmidt trigger of forward characteristic
The output of ST is low level, once cause the detection conducting wire 7 of corresponding site to be broken, PMOS tube grid G conversely, well lid has breakage
On must occur one and jumped by high level to low level failing edge, and PMOS tube is transferred on state by cut-off therewith, leakage
Pole D occur by low level to high level rising edge jump, formed after Schmidt trigger shaping it is precipitous by low level to
The rising edge of high level triggers interrupt response, MCU after being sent to the external interrupt response EI foot of the rising edge triggering of controller MCU
Carry out subsequent alarm and request maintenance process.
The utility model has the advantages that
Compared with prior art, the utility model structure of the detecting device is simple, low in cost, and detection circuit is simple and reliable,
Super low-power consumption, energy real-time detection manhole cover damage, and subsequent dimension can be alarmed and requested from interruption system MCU to server end
Repair processing.It can prevent the loss that person property is caused due to manhole cover damage using the utility model with less investment.Specific table
It is now as follows:
1, the Concentric circles detection sensor for the snakelike connection being made of conducting wire, structure is simple, low in cost, it is easy to accomplish；
2, by the flexible control to the concentric radius of circle of detection sensor, be conducive to the damaged inspection that selectivity is carried out well lid
It surveys, in addition, concentric circles quantity can increase as needed, concentric circles is more, and detection sensitivity is higher；
3, externally only there are two electrically connected ports for detector, easy to use；
4, detector port is series between power supply and the insulated gate electrode of metal-oxide-semiconductor, both ensure that detection sensor one in this way
It is directly in energized state, and realizes and does not have electric current in conducting wire, makes detection sensor work in no power waste state, is conducive to
Promote the stand-by time of battery power supply system；
5, select P-channel metal-oxide-semiconductor guarantee well lid in the case where no damaged in the case where detection sensor conducting,
PMOS is in an off state, further reduced the power loss of detection circuit；
6, detection circuit has used Schmidt trigger ST to carry out shaping, final output waveform signals to detection waveform
Rising edge respective sensor in SchOut, which detects well lid, breakage, by the EI of rising edge signal trigger controller MCU
Real-time processing of the control system to manhole cover damage may be implemented in interrupt response.
Detailed description of the invention
Fig. 1 is the structure chart of the prior art；
Fig. 2 is the inspection well cover back side equipped with detection sensor, 1- external-connected port, the edge of 2- inspection well cover, 3- detection line, 4-
The radius of concentric circles, 5- cambered surface, 6- inflection point；
Fig. 3 is the detection sensor of the concentric circles of non-uniform Distribution；
Fig. 4 is the sectional view of the inspection well cover with sensing line of embodiment 1, the 9- inspection well cover back side, 7- conductive layer, 8- insulation
Layer；
Fig. 5 is the working circuit diagram of the detection device of inspection well cover breakage；
Fig. 6 is that a kind of detection device of manhole cover damage examines the simulation waveform of timekeeping circuit, wherein (a) is that well lid is broken at random
Damage causes the simulation waveform of PMOS tube grid G voltage change, (b) is the input simulation waveform of Schmidt trigger, (c) close to apply
The simulation waveform of the shaping output of special trigger.
Specific embodiment
The utility model is further described in detail below by specific embodiment.
A kind of detection device of inspection well cover breakage, including inspection well cover, the sensor set on the inspection well cover back side, and with sensing
The circuit that device is connected, detection line of the sensor by being arranged in concentric circles and external-connected port positioned at detection line both ends,
The concentric circles curls up inside since an external-connected port, and the head and the tail of close concentric circles are connected to cambered surface with detection line, most interior
Layer detection line is converted into inflection point, it is ensured that another external-connected port is on the outside of the vertex of outermost layer cambered surface；The electricity routing sensor,
PMOS tube and voltage source VCCIt is connected in series, the external-connected port and voltage source V of the sensorCCIt is connected, another external connection end
Mouth is connected with the grid G of PMOS tube, the source S and voltage source V of PMOS tubeCCIt is connected, the grid G of the PMOS tube passes through diode
D1Ground connection, the diode D1Cathode it is upward, the drain D of the PMOS tube passes through diode D all the way2Ground connection, another way are outside
Connect Schmidt trigger ST.
The detection method of the detection device of above-mentioned inspection well cover breakage are as follows: when inspection well cover is intact, detection conducting wire conducting, PMOS
The grid G of pipe is high level VCC, PMOS tube is in an off state, and drain D is low level, the Schmidt trigger of forward characteristic
The output of ST is low level, once cause the detection conducting wire 7 of corresponding site to be broken, PMOS tube grid G conversely, well lid has breakage
On must occur one and jumped by high level to low level failing edge, and PMOS tube is transferred on state by cut-off therewith, leakage
Pole D occur by low level to high level rising edge jump, formed after Schmidt trigger shaping it is precipitous by low level to
The rising edge of high level triggers interrupt response, MCU after being sent to the external interrupt response EI foot of the rising edge triggering of controller MCU
Carry out subsequent alarm and request maintenance process.
Embodiment 1
A kind of detection device of inspection well cover breakage, including inspection well cover, the sensor set on the inspection well cover back side, and with sensing
The circuit that device is connected, detection line of the sensor by being arranged in concentric circles and external-connected port positioned at detection line both ends,
The concentric circles curls up inside since an external-connected port, and the head and the tail of close concentric circles are connected to cambered surface with detection line, most interior
Layer detection line is converted into inflection point, it is ensured that another external-connected port is on the outside of the vertex of outermost layer cambered surface；The electricity routing sensor,
PMOS tube and voltage source VCCIt is connected in series, the external-connected port and voltage source V of the sensorCCIt is connected, another external connection end
Mouth is connected with the grid G of PMOS tube, the source S and voltage source V of PMOS tubeCCIt is connected, the grid G of the PMOS tube passes through two poles
Pipe D1Ground connection, the diode D1Cathode it is upward, the drain D of the PMOS tube passes through diode D all the way2Ground connection, another road direction
Outer connection Schmidt trigger ST.Arrange that detection line, single-sided conductive adhesive tape insulating surfaces are fixed on inspection shaft in the way of Fig. 2 or Fig. 3
The back side of lid, conductive layer surface paste one layer of insulating tape, circuit are connected according still further to the circuit diagram of Fig. 5, to obtain inspection well cover
Damaged detection device.
Voltage source VCCSelect 5V, diode D1With diode D21N4007, PMOS is selected to select SOT23 encapsulation
AO3401, Schmidt trigger ST select SN74LVC1G17, and the output SchOut access controller MCU's of ST detection circuit is outer
Portion down trigger foot EI.
Embodiment 2
In addition to detection line is revised as electrically conductive graphite paper, remaining is the same as embodiment 1.
The preferable specific embodiment of the above, only the utility model, the protection scope of the utility model are not limited to
This, anyone skilled in the art can become apparent in the technical scope that the utility model discloses
Technical solution simple change or equivalence replacement each fall in the protection scope of the utility model.
Claims (4)
1. a kind of detection device of inspection well cover breakage, which is characterized in that including inspection well cover, sensor set on the inspection well cover back side,
And the circuit being connected with sensor, the sensor is by the detection line in concentric circles arrangement and positioned at detection line both ends
External-connected port, the concentric circles curl up inside since an external-connected port, and the head and the tail of close concentric circles are connected to detection line
Cambered surface, innermost layer detection line are converted into inflection point, it is ensured that another external-connected port is on the outside of the vertex of outermost layer cambered surface；The circuit by
Sensor, PMOS tube and voltage source VCCIt is connected in series, the external-connected port and voltage source V of the sensorCCIt is connected, it is another
A external-connected port is connected with the grid G of PMOS tube, the source S and voltage source V of PMOS tubeCCIt is connected, the grid G of the PMOS tube is logical
Cross diode D1Ground connection, the diode D1Cathode it is upward, the drain D of the PMOS tube passes through diode D all the way2Ground connection, separately
Connect Schmidt trigger ST outward all the way.
2. a kind of detection device of inspection well cover breakage according to claim 1, which is characterized in that the detection line is by conduction
The insulating layer of layer and package conductive layer；The material of the conductive layer is copper wire or conductive tape.
3. a kind of detection device of inspection well cover breakage according to claim 1, which is characterized in that the material of the detection line
For electrically conductive graphite paper.
4. a kind of detection device of inspection well cover breakage according to claim 1, which is characterized in that the concentric circles is between waiting
Away from or non-equidistant concentric circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820957437.8U CN208383783U (en) | 2018-06-21 | 2018-06-21 | A kind of detection device of inspection well cover breakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820957437.8U CN208383783U (en) | 2018-06-21 | 2018-06-21 | A kind of detection device of inspection well cover breakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208383783U true CN208383783U (en) | 2019-01-15 |
Family
ID=64967514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820957437.8U Expired - Fee Related CN208383783U (en) | 2018-06-21 | 2018-06-21 | A kind of detection device of inspection well cover breakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208383783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931557A (en) * | 2018-06-21 | 2018-12-04 | 盐城工学院 | A kind of detection device and its detection method of inspection well cover breakage |
| CN110095504A (en) * | 2019-06-10 | 2019-08-06 | 北京思迈特科技有限公司 | Channel cover board, mechanical destruction channel monitoring device and system based on Internet of Things |
-
2018
- 2018-06-21 CN CN201820957437.8U patent/CN208383783U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931557A (en) * | 2018-06-21 | 2018-12-04 | 盐城工学院 | A kind of detection device and its detection method of inspection well cover breakage |
| CN110095504A (en) * | 2019-06-10 | 2019-08-06 | 北京思迈特科技有限公司 | Channel cover board, mechanical destruction channel monitoring device and system based on Internet of Things |
| CN110095504B (en) * | 2019-06-10 | 2024-03-12 | 北京思迈特科技有限公司 | Channel cover plate, mechanical damage channel monitoring device and system based on Internet of things |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20210621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |