CN206787727U - Community population security surveillance system - Google Patents
Community population security surveillance system Download PDFInfo
- Publication number
- CN206787727U CN206787727U CN201720382392.1U CN201720382392U CN206787727U CN 206787727 U CN206787727 U CN 206787727U CN 201720382392 U CN201720382392 U CN 201720382392U CN 206787727 U CN206787727 U CN 206787727U
- Authority
- CN
- China
- Prior art keywords
- temperature
- housing
- alarm
- interchanger
- detection signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of community population security surveillance system, solve the problems, such as to be difficult to be discovered in time when the temperature in interchanger housing is too high, its drip irrigation device is, interchanger includes housing, temperature alarm is provided with housing, whether the temperature that temperature alarm includes being arranged in housing and for detecting in housing is above standard temperature with the temperature detecting unit of output temperature detection signal, temperature detecting unit is coupled to receive temperature detection signal and in response to the alarm unit of temperature detection signal, community population security surveillance system of the present utility model, the temperature variations in interchanger housing can be effectively monitored by temperature detecting unit, to feed back to alarm unit；When the temperature that temperature detecting unit is detected in housing is above standard temperature, alarm unit can be warned, and to remind people to take corresponding measure in time, avoid interchanger long-term work from causing to damage in hot environment.
Description
Technical field
It the utility model is related to safety-protection system, more particularly to community population security surveillance system.
Background technology
China's economic development in recent years is rapid, and economic prosperity causes many city laborers from other areas numerous, and this portion
Dividing population to have, mobility is big, dwelling places are scattered, cultural quality and living standard are different, management difficulty is high, Yi Fazhi
The features such as peace event.Common management means is used in the past, is put into substantial amounts of law enforcement officer and go on patrol within 24 hours, management cost
It is very high, not only waste time and energy, and blind area is managed due to existing, it is not easy to prevent the generation of the criminal cases such as burglary, robbery,
And the person that is permanent, renting personnel and property safety cannot also ensure.
As shown in figure 1, its system block diagram for community population security surveillance system in the prior art, the system mainly include
There are multiple cell security protection nodes and the community center control point being connected respectively with cell security protection node.Cell security protection node includes small
Area gate control node and unit gate control system, LAN is formed with cell gate control node between each unit gate control system.
Cell gate control node includes receiving the interchanger of gate control system information, and the transceiver being connected respectively with interchanger, information are read
Write device and video camera.Community center control point includes the transceiver for receiving cell security protection nodal information, the friendship being connected with transceiver
Change planes, what is be connected with interchanger is used to store the storage server of hair/Card Reader information and capture pictures information, is connected with interchanger
Be used to preserve and swipe the card, alarm and picture record and the database server that is communicated with public security department private network, be connected with interchanger
Information reader- writer and video camera.
Wherein, interchanger can provide the pathway for electrical signals exclusively enjoyed for any two network node, and its outer wrap has shell
Body.In the process of running, its internal electronic component can generate heat interchanger because of current work, over time, housing
Interior temperature can gradually rise, particularly during the broiling summer, when the temperature in housing exceedes its maximum permissible temperature, electronics
Element can be burned out, and so as to influence the normal operation of interchanger, and people often can not directly perceive the change of temperature, cause
Corresponding remedial measure can not be taken in time, therefore certain room for improvement also be present.
Utility model content
The purpose of this utility model is to provide a kind of community population security surveillance system, and the temperature inside interchanger is too high
When, it can be warned automatically.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of community population security surveillance system, including interchanger, the interchanger include housing, are provided with the housing
Temperature alarm, temperature that the temperature alarm is included being arranged in housing and whether the temperature for detecting in housing is above standard
Spend with the temperature detecting unit of output temperature detection signal, be coupled to temperature detecting unit to receive temperature detection signal and respond
In the alarm unit of temperature detection signal, the temperature detecting unit has an a reference value, and a reference value corresponds to standard temperature
Degree；
When the temperature that temperature detecting unit is detected in housing is above standard temperature, the alarm unit is warned.
Using such scheme, the temperature variations in interchanger housing can be effectively monitored by temperature detecting unit,
To feed back to alarm unit；When the temperature that temperature detecting unit is detected in housing is above standard temperature, alarm unit can
Warned, to remind people to take corresponding measure in time, avoid interchanger long-term work from causing to damage in hot environment.
Preferably, the temperature detecting unit includes temperature detecting part and the comparing section for providing a reference value；It is described
The temperature change that temperature detecting part is used to detect in housing is with output temperature signal；The comparing section be coupled to temperature detecting part with
Receive temperature signal, and by the value of temperature signal compared with a reference value after export corresponding temperature detection signal to warning list
Member.
Using such scheme, comparing section can be by temperature value that temperature detecting part measures by after compared with a reference value
Output temperature detection signal is to alarm unit so that detection is more accurate, moreover it is possible to avoids other extraneous small temperature changes pair
The temperature monitoring of temperature detecting unit impacts.
Preferably, the output end of the comparing section is also coupled to for improving benchmark threshold voltage with the temperature that debases the standard
Feedback section.
Using such scheme, feedback section provides positive feedback signal for comparing section, makes comparing section in the temperature of output high level
After detection signal, its benchmark threshold voltage can be improved by positive feedback, it is so as to reduce the normal temperature corresponding to a reference value, i.e., extensive
Rewarming degree, avoid the value of temperature detection signal from being fluctuated near normal temperature value, and cause the working condition of alarm unit continuous
Generation saltus step, and then influence the normal use of alarm unit.
Preferably, the comparing section is also coupled to the adjustment portion for adjusting a reference value.
Using such scheme, adjustment portion can adjust a reference value of comparing section, so as to adjust the standard of temperature detecting unit
Temperature value, to adapt to different operating modes, add the scope of application.
Preferably, offering the cavity for housing temperature alarm on the housing, the surface of the housing is corresponding
Cover plate is covered with the position of cavity opening, and the temperature alarm is fixed on the covering on face of cover plate；
One end of the cover plate is outward extended with eye-splice along its board direction, and the other end of the cover plate is provided with U-shaped elastic arm,
The movable end of the U-shaped elastic arm is provided with pin thread；The opening side that the surface of the housing corresponds to cavity is provided with limited block, institute
The side for stating limited block offers slot for eye-splice snapping, and opposite side that the cavity corresponds to its opening is offered for housing
U-shaped elastic arm is for the catching groove of the pin thread snapping.
Using such scheme, cavity can be used in placing temperature alarm so that temperature alarm can accurately monitor shell
Internal temperature change；The opening of cavity can be covered by cover plate so that dust cannot be introduced into cavity, while temperature report
Alert device can be dismounted accordingly with the folding of cover plate, be conveniently replaceable and repaired；Cooperation between eye-splice and slot, can
The fast assembling-disassembling of cover plate one end is realized, and the cooperation between U-shaped elastic arm, pin thread and catching groove can realize the fast of the cover plate other end
Speed dismounting, so as to realize fast assembling-disassembling between monoblock cover plate and cavity, improves operating efficiency.
Preferably, in the housing corresponding to cavity opening both sides be respectively equipped with the transmitter module that is oppositely arranged with
Receiving module, the transmitter module are used to launch infrared ray, and the receiving module is used for receiving infrared-ray and according to whether received
Corresponding infrared detection signal is exported to infrared ray, is coupled with the receiving module in response to infrared detection signal
Execution unit；
It is described to perform list during separating the infrared ray sent by transmitter module when temperature alarm is placed in cavity
Member control interchanger can be activated；Conversely, interchanger can not start.
Using such scheme, cooperation between transmitter module and receiving module can effectively whether monitoring temperature alarm
Through being positioned in cavity；If temperature alarm is placed into cavity, it can effectively separate what is sent by transmitter module
Infrared ray, now execution unit control exchange function and normally started；Conversely, if temperature alarm is fitted without in cavity,
The infrared ray that then transmitter module is sent can tend to remain on, and now execution unit can cut off interchanger, make it can not
Start, and then avoid interchanger from being worked in the case where not installing temperature alarm, and lose the function of high temperature alarm.
In summary, the utility model has the advantages that：Exchange can effectively be monitored by temperature detecting unit
Temperature variations in casing body, to feed back to alarm unit；When the temperature that temperature detecting unit is detected in housing exceedes
During normal temperature, alarm unit can be warned, and to remind people to take corresponding measure in time, avoid interchanger long-term work
Cause to damage in hot environment.
Brief description of the drawings
Fig. 1 is the system block diagram of community population security surveillance system in the prior art；
Fig. 2 is the explosive view of the present embodiment；
Fig. 3 is the partial sectional view one of the present embodiment；
Fig. 4 is the partial sectional view two of the present embodiment；
Fig. 5 is the circuit diagram one of the present embodiment；
Fig. 6 is the circuit diagram two of the present embodiment；
Fig. 7 is the circuit diagram three of the present embodiment.
In figure：1st, interchanger；2nd, housing；3rd, alarm unit；4th, temperature detecting part；5th, comparing section；6th, feedback section；7th, adjust
Portion；8th, temperature alarm；9th, cavity；10th, cover plate；11st, eye-splice；12nd, U-shaped elastic arm；13rd, pin thread；14th, limited block；15th, slot；
16th, catching groove；17th, transmitter module；18th, receiving module；19th, execution unit；20th, holding plate.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
A kind of community population security surveillance system disclosed in the present embodiment, as shown in Figures 2 and 3, including interchanger 1, hand over
Changing planes 1 includes housing 2, and the housing 2 is preferably set in cuboid, and its side is provided with some crystal head grafting for netting twine
Plug.Temperature alarm 8 is provided with housing 2, the temperature alarm 8 includes a shell for being used for packaging electronic parts, with
Electronic component inside protection.In the present embodiment, the shell is shaped as cuboid, and its height is more than the wall thickness of housing 2.
As shown in Fig. 2 offering the cavity 9 for housing temperature alarm 8 on housing 2, the opening of the cavity 9 is preferably in
It is square, and more than the shell sizes of temperature alarm 8, so that temperature alarm 8 can be smoothly positioned in cavity 9.Housing 2
Surface corresponds to the position that cavity 9 is open and is covered with cover plate 10, and the plate face shape of the cover plate 10 is preferably also the opening with cavity 9
Consistent square of shape, its size is more than the opening size of cavity 9, so that cover plate 10 will not be trapped in cavity 9.Temperature alarming
Device 8 is fixed on the covering on face of cover plate 10, so that temperature alarm 8 can correspondingly be picked and placeed with the folding of cover plate 10.
One end of cover plate 10 is outward extended with eye-splice 11 along its board direction, and the eye-splice 11 is preferably disposed on the edge of cover plate 10
Centre position；The other end of cover plate 10 is provided with U-shaped elastic arm 12, and the edge of cover plate 10 is fixed in one end of the U-shaped elastic arm 12
Centre position, and the cambered surface of U-shaped elastic arm 12 is provided with pin thread 13 towards housing 2, the movable end of U-shaped elastic arm 12, the pin thread 13 to
Outer setting, it can accordingly be advanced or retreated with the movable end of U-shaped elastic arm 12.In order to facilitate operation, in U-shaped elastic arm
12 movable end is extended with holding plate 20.
The opening side that the surface of housing 2 corresponds to cavity 9 is provided with limited block 14, and the limited block 14 is set in strip,
Its opening edge along cavity 9 is along setting, and with corresponding with the edge of cover plate 10, the side of limited block 14 is offered for eye-splice 11
The slot 15 of snapping；The opposite side of its corresponding opening of cavity 9 is offered for housing U-shaped elastic arm 12 for the button of the snapping of pin thread 13
Groove 16.
As shown in figure 4, the both sides being open in housing 2 corresponding to cavity 9 are respectively equipped with the transmitter module 17 being oppositely arranged
With receiving module 18, i.e., transmitter module 17 may be contained within the inner side of the housing 2 of interchanger 1 with receiving module 18, and face is set respectively
It is placed in the opening both sides of cavity 9.
As shown in figure 5, transmitter module 17 be used for launch infrared ray, it include NE555 timers A1, resistance R10, R11,
R12, electric capacity C5, C6 and infrared transmitting tube L1；NE555 timers A1 1 pin ground connection, resistance R10 are coupled to NE555 timers A1
2 pin and 3 pin between；Infrared transmitting tube L1 anode is coupled to 3 pin, and negative electrode is grounded by resistance R12, and resistance R12 plays limit
The effect of stream, it can effectively prevent infrared transmitting tube L1 from being damaged because electric current is excessive；NE555 timers A1 5 pin pass through electricity
Hold C6 ground connection；The resistance R11 and electric capacity C5 being connected in series, resistance the R11 other end are coupled to voltage vcc, and electric capacity C5's is another
End ground connection；NE555 timers A1 6 pin are coupled to resistance R11 and electric capacity C5 tie point；Above-mentioned connected mode constitutes 555
Multivibrator, it can export the wave of oscillation of certain frequency in infrared transmitting tube L1, infrared transmitting tube L1 is exported specific
The infrared ray action of wavelength is in receiving module 18.
As shown in figure 5, receiving module 18 is used for receiving infrared-ray and according to whether receives infrared ray and export corresponding
Infrared detection signal, it includes infrared receiving tube L2, resistance R4, R5, R13, R14, R8, R9, electric capacity C3, C4, diode D2
With comparator A2；Infrared receiving tube L2 plus earth, negative electrode are coupled to electric capacity C3 one end；The electric capacity C3 other end is coupled to
Diode D2 anode, diode D2 negative electrode are coupled to resistance R13 one end, and the resistance R13 other end is coupled to comparator
A2 inverting input；Resistance R4 one end is coupled to electric capacity C3 and diode D2 tie point, other end ground connection；Electric capacity C4's
One end is coupled to diode D2 negative electrode, other end ground connection；Resistance R5 one end is coupled to electric capacity C4 and resistance R13 connection
Point, other end ground connection；Resistance R14 one end is coupled to voltage E, and the other end is coupled to comparator A2 in-phase input end；Resistance
R8 one end is coupled to comparator A2 in-phase input end, other end ground connection；Resistance R9 one end is coupled to the defeated of comparator A2
Go out end, other end output infrared detection signal.Wherein infrared receiving tube L2 and infrared transmitting tube L1 is in being oppositely arranged, so that red
The infrared ray that outer transmitting tube L1 is sent can be received by infrared receiving tube L2.
Resistance R14 and R8 constitute bleeder circuit, and reference voltage, reference voltage are provided for comparator A2 in-phase input end
Value is determined by resistance R8 ratios shared in voltage E.Electric current can be produced when infrared receiving tube L2 receives infrared ray, and
As infrared ray is strong from weak change, electric current, which can be also followed from small, becomes big, gradually rises comparator A2 anti-phase input terminal voltage；
When the voltage of inverting input is more than the reference voltage value of in-phase input end, comparator A2 is exported low level by resistance R9
Infrared detection signal.
Conversely, when infrared receiving tube L2 is not received by infrared ray or very weak infrared ray, comparator A2's is anti-phase defeated
Enter terminal voltage close to zero, at this moment comparator A2 passes through the infrared detection signal that resistance R9 exports high level；Wherein diode
D2 plays rectified action, and electric capacity C4 plays filter action, and resistance R13 plays metering function, prevents input comparator A2 electric current
Excessive and cause comparator A2 to damage, resistance R9 also functions to metering function, prevents that the electric current that comparator A2 is exported is excessive.
As shown in fig. 6, the execution unit 19 in response to infrared detection signal, execution unit are coupled with receiving module 18
19 are coupled to voltage including relay KA, the triode Q2 of NPN type and sustained diode 3, one end of relay KA coil
V4, the other end are coupled to triode Q2 colelctor electrode, and the output end that triode Q2 base stage is coupled to resistance R9 is infrared to receive
Line detection signal, grounded emitter, sustained diode 3 and relay KA coil inverse parallel.Relay KA normally opened contact
KA-1 is series in the current supply circuit of interchanger 1.
When temperature alarm 8 is placed in cavity 9, during separating the infrared ray sent by transmitter module 17, list is performed
Member 19 controls interchanger 1 to be activated；Conversely, interchanger 1 can not start.
Specific work process is as follows：
When installing temperature alarm 8 on interchanger 1, the eye-splice 11 on cover plate 10 is first inserted into the slot of limited block 14
In 15, to limit an end position of cover plate 10, then U-shaped elastic arm 12 is put into catching groove 16, and is detained by pin thread 13
Tightly, to limit another end position of cover plate 10.
Now, temperature alarm 8 is placed into cavity 9 with cover plate 10, is sent with cut-off by transmitter module 17
Infrared ray so that receiving module 18 can not receive, so as to export the infrared detection signal of high level to triode Q2 base
Pole, turn on triode Q2, relay KA coil obtains electric adhesive, its corresponding normally opened contact KA-1 closure, turns on interchanger 1
Current supply circuit so that interchanger 1 can be activated.
If temperature alarm 8 is not installed in cavity 9, the infrared ray that transmitter module 17 is sent is not separated, is made
Receiving module 18 can receive infrared ray, so as to export low level infrared detection signal to triode Q2 base stage,
End triode Q2, relay KA coil losing electricity resets, and its corresponding normally opened contact KA-1 disconnects, to cut off interchanger 1
Current supply circuit, interchanger 1 is not started, and then avoid interchanger 1 from being made in the case where not installing temperature alarm 8
With so as to ensure the detection of temperature alarm 8 and alarming effect.
As shown in fig. 7, whether the temperature that temperature alarm 8 includes being arranged in housing 2 and for detecting in housing 2 exceedes
Normal temperature with the temperature detecting unit of output temperature detection signal, be coupled to temperature detecting unit to receive temperature detection signal
And in response to the alarm unit 3 of temperature detection signal, temperature detecting unit has an a reference value, a reference value corresponds to standard temperature
Degree.When the temperature that temperature detecting unit is detected in housing 2 is above standard temperature, alarm unit 3 is warned.
Temperature detecting unit includes temperature detecting part 4 and the comparing section 5 for providing a reference value.
The temperature change that temperature detecting part 4 is used to detect in housing 2 is with output temperature signal.Temperature detecting part 4 includes heat
Quick resistance Rt, resistance R6 and R7；Resistance R7 one end is coupled to voltage V2, and the other end is coupled to thermistor Rt one end, heat
Quick resistance Rt other end ground connection；Resistance R6 one end is coupled to thermistor Rt and resistance R7 tie point, other end output
Temperature signal is to comparing section 5；Resistance R6 output end is also grounded by electric capacity C2.Wherein thermistor Rt preferably uses negative temperature
Coefficient resistance, i.e. resistance value reduce with the rise of temperature, conversely, increasing with the reduction of temperature.
Thermistor Rt and resistance R7 constitutes bleeder circuit, when the temperature in the housing 2 of interchanger 1 rises, temperature-sensitive electricity
The resistance for hindering Rt reduces, and its tie point voltage between resistance R7 decreases；On the contrary, as the Wen Duxiajiang in housing 2
When, thermistor Rt resistance increase, its tie point voltage between resistance R7 rises therewith.Wherein electric capacity C2 plays voltage stabilizing filter
The effect of ripple, resistance R6 play metering function.
Comparing section 5 is coupled to temperature detecting part 4 to receive temperature signal, and the value of temperature signal is compared with a reference value
After export corresponding temperature detection signal to alarm unit 3.Comparing section 5 is comparator U, comparator U inverting input coupling
It is connected to resistance R6 and electric capacity C2 tie point, output end output temperature detection signal to alarm unit 3.
Comparing section 5 is also coupled to the adjustment portion 7 for adjusting a reference value.Adjustment portion 7 includes variable resistor R1, variable resistor
R3 and electric capacity C1, variable resistor R1 a ends are coupled to a ends that voltage V1, b ends are coupled to variable resistor R3；Variable resistor R3 b
End ground connection, variable resistor R1 and variable resistor R3 tie point are coupled to comparator U in-phase input end.
Variable resistor R1 and R3 together constitutes bleeder circuit, can be adjusted between the two by the resistance for adjusting R1 and R3
Tie point voltage, the voltage acts on comparator U in-phase input end as the benchmark threshold voltage of temperature detecting unit, and its is right
Should be in the normal temperature in the housing 2 of interchanger 1, and magnitude of voltage is higher, corresponding normal temperature value is lower.
Electric capacity C1 both ends are respectively coupled to variable resistor R3 both ends, and electric capacity C1 plays pressure stabilization function so that variable resistor
For R3 when being adjusted, the voltage change at its both ends can be more smooth.
The output end of comparing section 5 is also coupled to for improving benchmark threshold voltage with the feedback section 6 for the temperature that debases the standard.Feedback
Portion 6 includes variable resistor R2 and diode D1, and diode D1 anode is coupled to comparator U output end, and negative electrode is coupled to can
Become resistance R2 a ends, variable resistor R2 b ends are coupled to comparator U in-phase input end.
Positive feedback loop is formd by diode D1 and variable resistor R2, when comparator U exports high level, by just
Output signal is added to comparator U in-phase input end by backfeed loop, raises the voltage of in-phase input end；Wherein diode
D1 plays one-way conduction, prevents voltage V1 from pouring in down a chimney the output end to comparator U by positive feedback loop；Can power transformation by regulation
Resistance R2 resistance can change the size of current for being flowed into comparator U in-phase input ends, so as to adjust the value of positive and negative feedthrough voltage.
Alarm unit 3 includes buzzer SP and the triode Q1 of NPN type, and buzzer SP one end is coupled to voltage V3, separately
One end is coupled to triode Q1 colelctor electrode, and triode Q1 base stage is coupled to comparator U output end to receive temperature detection
Signal, grounded emitter.
Specific work process is as follows：
When temperature alarm 8 has been installed in cavity 9, its temperature that can normally monitor in the housing 2 of interchanger 1 becomes
Change.
When temperature inside housing 2 is normal, thermistor Rt resistance is higher, makes the electricity of comparator U inverting inputs
Pressure is more than the voltage of its in-phase input end, the base stage of the low level temperature detection signal of at this moment comparator U outputs to triode Q1,
End triode Q1, to cut off buzzer SP current supply circuit, make buzzer SP without warning.
When the temperature rise in the housing 2 of interchanger 1, the resistance for the thermistor Rt being arranged inside housing 2 subtracts therewith
Small, the voltage for the inverting input for making to act on comparator U reduces；When temperature is above standard temperature, comparator U's is anti-phase
Input terminal voltage is just less than the voltage of its in-phase input end, makes the temperature detection signal of comparator U output high level to three poles
Pipe Q1 base stage, turns on triode Q1, and buzzer SP sounds the alarm.
Comparator U output end raises the voltage of in-phase input end by feedback section 6 simultaneously, so that in housing 2
Recovery temperature is less than original normal temperature, and the resistance by adjusting variable resistor R2 can adjust the height of recovery temperature.
After interchanger 1 is out of service, the temperature inside housing 2 is begun to decline, and thermistor Rt resistance increases therewith,
So that comparator U anti-phase input terminal voltage constantly raises, when temperature drops to less than the recovery temperature of original normal temperature
When, comparator U anti-phase input terminal voltage could be more than the voltage of its in-phase input end again, comparator U is exported again low
The temperature detection signal of level ends triode Q1, buzzer SP stops warning to triode Q1 base stage.
Claims (6)
1. a kind of community population security surveillance system, including interchanger (1), the interchanger (1) includes housing (2), its feature
It is：Temperature alarm (8) is provided with the housing (2), the temperature alarm (8) includes being arranged in housing (2) and being used for
Temperature in detection housing (2) whether be above standard temperature with the temperature detecting unit of output temperature detection signal, be coupled to temperature
Degree detection unit is to receive temperature detection signal and in response to the alarm unit (3) of temperature detection signal, the temperature detection list
Member has an a reference value, and a reference value corresponds to normal temperature；
When the temperature that temperature detecting unit is detected in housing (2) is above standard temperature, the alarm unit (3) is warned
Show.
2. community population security surveillance system according to claim 1, it is characterized in that：The temperature detecting unit includes temperature
Spend test section (4) and the comparing section (5) for providing a reference value；The temperature detecting part (4) is used to detect the temperature in housing (2)
Degree change is with output temperature signal；The comparing section (5) is coupled to temperature detecting part (4) to receive temperature signal, and by temperature
The value of signal compared with a reference value after export corresponding temperature detection signal to alarm unit (3).
3. community population security surveillance system according to claim 2, it is characterized in that：The output end of the comparing section (5)
It is also coupled to for improving benchmark threshold voltage with the feedback section (6) for the temperature that debases the standard.
4. community population security surveillance system according to claim 3, it is characterized in that：The comparing section (5) has been also coupled to
For adjusting the adjustment portion (7) of a reference value.
5. according to the community population security surveillance system described in any one of Claims 1-4, it is characterized in that：On the housing (2)
The cavity (9) for housing temperature alarm (8) is offered, the surface of the housing (2) corresponds to the position of cavity (9) opening
It is covered with cover plate (10), the temperature alarm (8) is fixed on the covering on face of cover plate (10)；
One end of the cover plate (10) is outward extended with eye-splice (11) along its board direction, and the other end of the cover plate (10) is provided with
U-shaped elastic arm (12), the movable end of the U-shaped elastic arm (12) are provided with pin thread (13)；The surface of the housing (2) corresponds to cavity
(9) opening side is provided with limited block (14), and the side of the limited block (14) offers the slot for eye-splice (11) snapping
(15), the cavity (9) corresponds to its opposite side being open and offered for housing U-shaped elastic arm (12) so that the pin thread (13) is detained
The catching groove (16) connect.
6. community population security surveillance system according to claim 5, it is characterized in that：Correspond in the housing (2) recessed
The both sides of chamber (9) opening are respectively equipped with the transmitter module (17) being oppositely arranged and receiving module (18), the transmitter module
(17) it is used to launch infrared ray, the receiving module (18) is used for receiving infrared-ray and according to whether receiving infrared ray and exporting
Corresponding infrared detection signal, the execution unit in response to infrared detection signal is coupled with the receiving module (18)
(19)；
It is described during separating the infrared ray sent by transmitter module (17) when temperature alarm (8) is placed in cavity (9)
Execution unit (19) control interchanger (1) can be activated；Conversely, interchanger (1) can not start.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382392.1U CN206787727U (en) | 2017-04-12 | 2017-04-12 | Community population security surveillance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382392.1U CN206787727U (en) | 2017-04-12 | 2017-04-12 | Community population security surveillance system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206787727U true CN206787727U (en) | 2017-12-22 |
Family
ID=60707330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720382392.1U Expired - Fee Related CN206787727U (en) | 2017-04-12 | 2017-04-12 | Community population security surveillance system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206787727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083070A (en) * | 2018-10-19 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Time trigger mechanism industrial Ethernet switch equipment |
-
2017
- 2017-04-12 CN CN201720382392.1U patent/CN206787727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083070A (en) * | 2018-10-19 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Time trigger mechanism industrial Ethernet switch equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103487622B (en) | A kind of electricity meter box device preventing stealing electricity and there is control function | |
| CN207051699U (en) | The long-range inspection integrative intelligent management system of power distribution room | |
| CN206210020U (en) | A kind of thief-proof electricity meter box | |
| CN205541201U (en) | Prevent burglary's intelligent security system of family | |
| CN105788162A (en) | Household security and environment monitoring alarm device and method based on wireless sensor network | |
| CN105448018A (en) | Intrusion alarm system for power system control machine room | |
| CN102852426A (en) | Intelligent safe with built-in power grid and image pickup system | |
| CN107025749A (en) | Outdoor enclosure anti-theft alarming equipment and outdoor enclosure anti-theft alarming method | |
| CN206787727U (en) | Community population security surveillance system | |
| CN104316739A (en) | Electricity meter metering box circuit preventing electricity larceny based on four communication modes | |
| CN107705482A (en) | Oppose electricity-stealing accurate alarm and evidence-obtaining system and method based on unmanned plane | |
| CN207251767U (en) | Power distribution room Internet of Things video system | |
| CN204480457U (en) | A kind of Internet of Things warning system | |
| CN205211111U (en) | Security protection monitored control system of computer room | |
| CN105205976A (en) | Household intelligent monitoring system based on Internet of things | |
| CN104481364A (en) | Intelligent security door system based on Internet of Things | |
| CN204425490U (en) | A kind of triggering shooting formula web camera | |
| CN109509323A (en) | A kind of wireless low-power consumption fire risk early warning system and method | |
| CN212723039U (en) | Anti-electricity-stealing smart electric meter | |
| CN211556490U (en) | Prevent intelligent switch cabinet that abnormal opening | |
| CN108447220A (en) | A kind of smart home security alarm system | |
| CN210037934U (en) | Ammeter case management and control system based on intelligence lock | |
| CN211180571U (en) | Household environment alarm snapshot monitoring system | |
| CN207200875U (en) | Gas meter video monitoring apparatus | |
| CN212873722U (en) | Opening alarm system based on NB transmission mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20190412 |