CN206684950U - A kind of traffic light control system - Google Patents
A kind of traffic light control system Download PDFInfo
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- CN206684950U CN206684950U CN201720403809.8U CN201720403809U CN206684950U CN 206684950 U CN206684950 U CN 206684950U CN 201720403809 U CN201720403809 U CN 201720403809U CN 206684950 U CN206684950 U CN 206684950U
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- temperature
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Abstract
The utility model discloses a kind of traffic light control system,Solve the problems, such as in the system that camera temperature is too high to be easily damaged,Its drip irrigation device is,Temperature alarm is provided with the housing of camera,Temperature alarm includes temperature detecting part,Multi-harmonic-oscillations portion,Frequency lsb decoder,Control unit and alarm unit,When the temperature that temperature detecting part is detected in casing of pick-up head body is above standard temperature so that the frequency of oscillator signal falls in the centre frequency of frequency lsb decoder,The control control unit work of frequency lsb decoder,So that alarm unit is warned,A kind of traffic light control system of the present utility model,Temperature detecting part can monitor the temperature change in casing of pick-up head body in real time,When the temperature in casing of pick-up head body is above standard temperature,The frequency of oscillator signal can just fall the centre frequency in frequency lsb decoder,Frequency lsb decoder drive control unit is set to work,So that alarm unit is warned,To remind people to take corresponding measure in time.
Description
Technical field
A kind of control system is the utility model is related to, more particularly to a kind of traffic light control system.
Background technology
Traffic light control system is the regional traffic signal reality for integrating modern computer, communication and control technology
When control system of online, the real-time control for the oral sex messenger that can be achieved to satisfy the need, carry out the excellent of area coordination control model, center and local
Change control.The real-time query of crossing state and monitoring, have belisha beacon fault location, the real-time upload of timing scheme with
Download, the function such as the record of Operation Log and management, the Telnet control of multi-user and rights management.
Notification number is that CN205158638U utility model patent discloses a kind of traffic light control system, such as Fig. 1
It is shown, including data acquisition and monitoring unit, data pre-processing and memory, central controller, sun-rain-shading apparatus, purifying and dedusting
Device, walk signal lamp, turning vehicle right of way signal lamp, alarm, cloud server；Data acquisition and monitoring unit includes
Temperature Humidity Sensor, air mass sensor, light sensor, environmental monitor, infrared human body sensor, high-definition camera,
Weight sensor, monitored by personnel's device, vehicle speed sensor, magnetic-field Sensor for Traffic Counting, turning car monitor.
In above-mentioned traffic light control system, camera plays as the real-time visual plant for obtaining traffic image
Indispensable effect.With the continuous operation of camera, the electronic component in its housing can generate heat because of current work, and
And the time of operation is longer, the heat of accumulation will be higher.Particularly during the broiling summer, if the temperature in casing of pick-up head body surpasses
Maximum permissible temperature is crossed, its internal electronic component is easy to burn, and not only influences the normal operation of camera, can also band
Carry out certain maintenance cost, but people can not often perceive the temperature change in casing of pick-up head body in time, lead to miss
The optimal make-up time, therefore certain room for improvement also be present.
Utility model content
The purpose of this utility model is to provide a kind of traffic light control system, the temperature exceeding standard in casing of pick-up head body
When, it can be warned automatically.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of traffic light control system, including camera, the housing of the camera is interior to be provided with temperature alarm, institute
Stating temperature alarm includes
Temperature detecting part, for detecting the temperature change in casing of pick-up head body to export corresponding temperature signal；
Multi-harmonic-oscillations portion, temperature detecting part is coupled to receive temperature signal and export respective tones according to the value of temperature signal
The oscillator signal of rate；
Frequency lsb decoder, there is a centre frequency for corresponding to normal temperature, be coupled to multi-harmonic-oscillations portion to receive vibration
Signal, and by the frequency size of oscillator signal compared with centre frequency after export corresponding comparison signal；
Control unit, frequency lsb decoder is coupled to receive comparison signal and output control signal；
Alarm unit, control unit is coupled to receive control signal and in response to control signal；
When the temperature that temperature detecting part is detected in casing of pick-up head body is above standard temperature so that the frequency of oscillator signal falls
In the centre frequency of frequency lsb decoder, the frequency lsb decoder control control unit work, so that alarm unit is warned.
Using such scheme, temperature detecting part can monitor the temperature change in casing of pick-up head body, multi-harmonic-oscillations portion in real time
The temperature signal for the different numerical value that can be exported according to temperature detecting part decodes to export the oscillator signal of different frequency to frequency
Portion；When the temperature in the external world changes, the frequency of oscillator signal can also occur correspondingly to change；Temperature in casing of pick-up head body
Degree be above standard temperature when, the frequency of oscillator signal can just fall the centre frequency in frequency lsb decoder, make frequency lsb decoder
Drive control unit works, so that alarm unit is warned, to remind people to take corresponding measure in time, avoids camera
Damaged because temperature is too high.
Self-locking is carried out in response to comparison signal so that control unit keeps work preferably, being coupled with described control unit
Make state from lock unit.
Using such scheme, by effectively can be locked from lock unit to the working condition of control unit, so that alert
Show that unit can be maintained at working condition, to continue its alarming effect.
Preferably, it has been also coupled in described control unit for cutting-off controlling unit to release from lock unit self-locking state
Reset portion.
Using such scheme, reset portion can release the self-locking state from lock unit, so that control unit is stopped, together
When alarm unit stop alarm.
Preferably, the frequency lsb decoder is also coupled to the adjustment portion for adjusting centre frequency.
Using such scheme, adjustment portion is capable of the centre frequency of regulating frequency lsb decoder, right so as to adjust centre frequency institute
The normal temperature answered, adds the scope of application.
Preferably, the alarm unit includes sounding alarm and light-emitting alarm.
Using such scheme, sounding alarm is more eye-catching, is more easy to attract much attention, so as to the police of improving warning unit
Show effect；Luminous alarm can help people to find the camera of temperature exceeding standard, more hommization in low light environment.
Preferably, offering the cavity housed for temperature alarm on the housing of the camera, the cavity is opened
Cover plate is covered with mouthful, the both ends of the cover plate are outward extended with support plate, and the support plate passes through screw and the housing of camera
It is mutually fixed；The temperature alarm is fixed on the covering on face of cover plate.
Using such scheme, because temperature alarm has certain service life, if long-term use of, its partial function is just
It can fail, so as to which timely warning function can not be played, it is therefore desirable to which temperature alarm is periodically changed；Wherein, cavity
Accommodation space is provided for temperature alarm, while and can allows temperature detecting part accurately to monitor the temperature change in housing, and cover
Plate can seal the opening of cavity, and and can takes out out of cavity temperature alarm with the folding of cover plate, or loads to recessed
Intracavitary, so as to improve operating efficiency, moreover it is possible to reduce operation difficulty.
Preferably, the opening of the cavity offers the step trough housed for cover plate, the both sides of the step trough are equal
Offer the groove housed for support plate.
Using such scheme, step trough is respectively that cover plate provides accommodation space with support plate with groove, so that cover plate will not
The surface of camera housing is protruded from, the sealing of cover plate can be lifted, and can reduces the space-consuming of cover plate.
In summary, the utility model has the advantages that：Temperature detecting part can monitor camera housing in real time
Interior temperature change, the temperature signals of the different numerical value that multi-harmonic-oscillations portion can be exported according to temperature detecting part export different frequencies
The oscillator signal of rate is to frequency lsb decoder；When the temperature in the external world changes, the frequency of oscillator signal can also occur correspondingly
Change；When the temperature in casing of pick-up head body is above standard temperature, the frequency of oscillator signal can just fall in frequency lsb decoder
Centre frequency, make frequency lsb decoder drive control unit work so that alarm unit is warned, to remind people timely
Corresponding measure is taken, avoids camera from being damaged because temperature is too high.
Brief description of the drawings
Fig. 1 is the structured flowchart of traffic light control system in the prior art；
Fig. 2 is the explosive view of camera in the present embodiment；
Fig. 3 is the structural representation of the present embodiment cover plate；
Fig. 4 is the circuit diagram one of the present embodiment；
Fig. 5 is the circuit diagram two of the present embodiment.
In figure：1st, camera；2nd, temperature alarm；3rd, temperature detecting part；4th, multi-harmonic-oscillations portion；5th, frequency lsb decoder；6、
Control unit；8th, from lock unit；9th, reset portion；10th, adjustment portion；11st, sounding alarm；12nd, light-emitting alarm；13rd, cavity；
14th, cover plate；15th, support plate；16th, screw；17th, step trough；18th, groove.
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 traffic light control system disclosed in the present embodiment, as shown in Fig. 2 including camera 1, camera 1
Temperature alarm 2 is provided with housing, the cavity 13 housed for temperature alarm 2, the cavity 13 are offered on the housing of camera 1
Preferably square setting.The opening of cavity 13 is covered with cover plate 14, the opening shape being preferably shaped to cavity 13 of cover plate 14
Consistent square of shape, and more than the opening size of cavity 13 so that cover plate 14 can seal cavity 13 completely.The two of cover plate 14
End is outward extended with support plate 15, and two support plates 15 are symmetrical set, and support plate 15 is mutually solid by the housing of screw 16 and camera 1
It is fixed.The opening of cavity 13 offers the step trough 17 housed for cover plate 14, i.e. the step trough 17 is surrounded on the opening of cavity 13
Edge, and the both sides of step trough 17 offer for support plate 15 house groove 18, two grooves 18 with the phase of step trough 17
Connection, and corresponded with support plate 15.Support plate 15 is mutually fixed by the bottom surface of screw 16 and groove 18.As shown in figure 3, temperature report
Alert device 2 is fixed on the covering on face of cover plate 14, and is preferably disposed on the center of cover plate 14.
The specific disassembly process of temperature alarm 2 is as follows：
When dismantling temperature alarm 2, first screw 16 is backed out, just can release the locking of cover plate 14, so that cover plate 14 can
Taken out in from step trough 17, and then the temperature alarm 2 being fixed on cover plate 14 is taken out out of cavity 13 together, it is just complete with this
Into the dismounting of temperature alarm 2.
When installing temperature alarm 2, first temperature alarm 2 is put into cavity 13, be then aligned with support plate 15 with it is recessed
Position between groove 18, and support plate 15 is put into corresponding groove 18, at the same cover plate 14 also and then together inlay card to ladder
In groove 17；After the completion of cover plate 14 is put, the bottom surface of support plate 15 and groove 18 is mutually fixed by screw 16, and then completes temperature
The installation of alarm 2.
As shown in figure 4, temperature alarm 2 includes temperature detecting part 3, multi-harmonic-oscillations portion 4, frequency lsb decoder 5, control unit
6 and alarm unit.
As shown in figure 4, temperature detecting part 3 is used to detect the temperature change in the housing of camera 1 to export corresponding temperature
Signal, temperature detecting part 3 are thermistor Rt, preferably use negative tempperature coefficient thermistor here, i.e. resistance value can be with
The rise of temperature and reduce, conversely, resistance value increases with the reduction of temperature.Here thermistor Rt model preferably uses
NTC 5D-13。
As shown in figure 4, multi-harmonic-oscillations portion 4 is coupled to temperature detecting part 3 to receive temperature signal and according to temperature signal
The oscillator signal of value output corresponding frequencies, it includes 555 timers, resistance R1, electric capacity C1 and C2；Resistance R1 one end is coupled to
Power supply E positive pole, the other end are coupled to thermistor Rt one end, and the thermistor Rt other end is coupled to electricity by electric capacity C1
Source E negative pole；7 pin of 555 timers are coupled to resistance R1 and thermistor Rt tie point, and 6 pin and 2 pin are coupled to temperature-sensitive
Resistance Rt and electric capacity C1 tie point, 4 pin and 8 pin are coupled to power supply E positive pole, 1 pin ground connection, and 5 pin are coupled to electric capacity C2's
One end, the electric capacity C2 other end are coupled to power supply E negative pole；3 pin outputting oscillation signals of 555 timers are to frequency lsb decoder 5
Input.
After switching on power, electric capacity C1 is electrically charged, when the node voltage on electric capacity C1 rises to 2/3rds of power supply E voltages
When, the 3 pin output low level of 555 timers, while its internal discharge diode conducting；Now electric capacity C1 passes through thermistor
Rt and discharge diode electric discharge, decline electric capacity C1 node voltage；When the node voltage on electric capacity C1 drops to power supply E voltages
1/3rd when, the 3 pin voltages upset of 555 timers be high level, and when the node voltage on electric capacity C1, to rise to power supply E electric
Pressure 2/3rds when, it is low level that 3 pin of 555 timers are overturn again, is so gone round and begun again；Then, the 3 of 555 timers
Pin just obtains the square wave of a cycle, its frequency of oscillation f=1.43/ [（R1+2Rt）C1]；Because thermistor Rt is subzero temperature
Coefficient resistance is spent, therefore when the temperature in the housing of camera 1 rises, thermistor Rt resistance reduces, according to vibration
The relational expression of frequency can obtain, frequency of oscillation increase；Conversely, as the Wen Duxiajiang in the housing of camera 1, thermistor Rt resistance
Value increase, frequency of oscillation reduce therewith.
As shown in figure 4, frequency lsb decoder 5 has a centre frequency for corresponding to normal temperature, it is coupled to multi-harmonic-oscillations
Portion 4 to receive oscillator signal, and by the frequency size of oscillator signal compared with centre frequency after export and corresponding relatively believe
Number.Frequency lsb decoder 5 is also coupled to the adjustment portion 10 for adjusting centre frequency.
Frequency lsb decoder 5 includes decoder LM567, electric capacity C3, C4, C5, relay K1 and sustained diode 1；Adjustment portion
10 be variable resistor RP；Decoder LM567 3 pin are coupled to the output end in multi-harmonic-oscillations portion 4 to receive oscillator signal, 5 pin couplings
Variable resistor RP movable end is connected to, variable resistor RP fixing end is coupled to power supply E negative pole by electric capacity C3；Decoder
LM567 6 pin are coupled to variable resistor RP and electric capacity C3 tie point；Decoder LM567 4 pin are coupled to power supply E positive pole,
7 pin are coupled to power supply E negative pole, and 1 pin is coupled to power supply E negative pole by electric capacity C4；Decoder LM567 2 pin pass through electric capacity
C5 is coupled to power supply E negative pole；One end of relay K1 coil is coupled to power supply E positive pole, and the other end is coupled to decoder
LM567 8 pin；Sustained diode 1 and relay K1 coil inverse parallel.
Decoder LM567 5 pin and 6 pin are used to provide output waveform, and 8 pin are decoder LM567 main delivery outlet, and 5
Pin and 6 pin external variable resistor RP and electric capacity C3 determine decoder LM567 centre frequency (f0=1/1.1RC), wherein public
R in formula represents variable resistor RP effective resistance value, and C represents electric capacity C3 capacitance, therefore can be by adjusting variable resistor
RP resistance carrys out regulating frequency decoder LM567 centre frequency size；It is phase that decoder LM567 2 pin meet electric capacity C5 over the ground
The low pass filter of bit comparator output, 1 pin connect the output that electric capacity C4 is quadrature phase detector device and filtered over the ground, wherein electric capacity C4
Capacitance should be not less than twice of electric capacity C5；Decoder LM567 3 pin are signal input part, for receiving multi-harmonic-oscillations portion 4
The oscillator signal of output；When the frequency of the oscillator signal received by decoder LM567 just falls frequency of heart wherein, logic
The pin of output end 8 exports low level signal to relay K1, relay K1 coil both ends is produced potential difference, so as to obtain electric suction
Close；Otherwise, decoder LM567 8 pin output high level signal, makes relay K1 coil both end voltage consistent, so that can not
Voltage difference is produced, and then electric adhesive can not be obtained.
As shown in figure 5, control unit 6 is coupled to frequency lsb decoder 5 to receive comparison signal and output control signal, it is wrapped
Include relay K1 normally opened contact K1-1, relay K2 and sustained diode 2, relay K1 normally opened contact K1-1 one end
Voltage V1 is coupled to, the other end is coupled to one end of relay K2 coil, and sustained diode 2 and relay K2 coil are anti-
It is in parallel.
As shown in figure 5, alarm unit is coupled to control unit 6 to receive control signal and in response to control signal, warn
Unit includes sounding alarm 11 and light-emitting alarm 12.Wherein, sounding alarm 11 includes relay K2 normally opened contact K2-
2 and buzzer SP, relay K2 normally opened contact K2-2 one end are coupled to voltage V2, and the other end is coupled to the one of buzzer SP
End, buzzer SP other end ground connection.
Light-emitting alarm 12 includes relay K2 normally opened contact K2-3 and strobe light emission diode LD, and relay K2's is normal
The one end for opening contact K2-3 is coupled to voltage V3, and the other end is coupled to strobe light emission diode LD anode, the pole of strobe light emission two
Pipe LD minus earth.
When the temperature that temperature detecting part 3 is detected in the housing of camera 1 is above standard temperature so that the frequency of oscillator signal
Fall in the centre frequency of frequency lsb decoder 5, frequency lsb decoder 5 controls control unit 6 to work, so that alarm unit is warned
Show.
Self-locking is carried out in response to comparison signal so that control unit 6 keeps work as shown in figure 5, being coupled with control unit 6
Make state from lock unit 8, from the normally opened contact K2-1 that lock unit 8 is relay K2, it is parallel to the normally opened of relay K1 and touched
Point K1-1 both ends.It is also coupled in control unit 6 for cutting-off controlling unit 6 to release answering from the self-locking state of lock unit 8
Position portion 9, reset portion 9 are normally closed button SB, and its one end is coupled to the company of relay K2 coil and the anode of sustained diode 2
Contact, other end ground connection.
Power supply E positive pole is also in series with switch S, and close a switch S, just power supply E can be allowed to be powered, so that temperature alarming
Device 2 enters detection state；S is switched if disconnecting, power supply E is cut off, and temperature alarm 2 is stopped detection, easy access and dimension
Shield, can also save electric energy.
The specific work process of foregoing circuit is as follows：
When the temperature in the housing of camera 1 be in it is normal when, thermistor Rt resistance is higher, makes multi-harmonic-oscillations portion 4 defeated
The frequency of the oscillator signal gone out is less than the centre frequency of frequency lsb decoder 5, so that frequency lsb decoder 5 exports high level signal extremely
Relay K1 coil, relay K1 coil are failure to actuate, and its corresponding normally opened contact K1-1 is off, and makes relay
K2 coil is in power failure state, and its corresponding normally opened contact K2-1, K2-2 and K2-3 all are at off-state, relay K2
Coil not self-locking, and buzzer SP does not alarm, and strobe light emission diode LD does not flash.
When the temperature in the housing of camera 1 rises, thermistor Rt resistance reduces therewith, makes institute of multi-harmonic-oscillations portion 4
The frequency of the oscillator signal of output increases therewith；When frequency increases to decoder LM567 centre frequency, frequency lsb decoder 5
Low level signal is exported to relay K1, relay K1 coil is obtained electric adhesive；At this moment relay K1 normally opened contact K1-1
Closure, turn-on relay K2 current supply circuit so that relay K2 coil obtains electric adhesive, and its corresponding normally opened contact K2-1 is closed
Close, relay K2 coil is held in self-locking state, while normally opened contact K2-2 and K2-3 is closed, and sends buzzer SP
Alarm song, strobe light emission diode LD carries out light flash, to remind people.
Due to relay K2 normally opened contact K2-1 self-lockings, therefore buzzer SP and strobe light emission diode LD can
It is maintained at alert status.
After the temperature in the housing of camera 1 recovers normal, the oscillation signal frequency exported by multi-harmonic-oscillations portion 4 is low again
In decoder LM567 centre frequency, reset relay K1 coil losing electricity, its corresponding normally opened contact K1-1 breaks again
Open.After the temperature for confirming camera 1 is had already decreased to below normal temperature, normally closed button SB only need to be pressed, to cut off relay
Device K2 current supply circuit, relay K2 coil losing electricity is resetted, relay K2 normally opened contact K2-1 just can be allowed to disconnect, with solution
Except the self-locking state from lock unit 8, while normally opened contact K2-2 and K2-3 disconnect corresponding to relay K2, make buzzer SP with
Strobe light emission diode LD stops warning.
Claims (7)
1. a kind of traffic light control system, including camera (1), it is characterized in that：It is provided with the housing of the camera (1)
Temperature alarm (2), the temperature alarm (2) include
Temperature detecting part (3), for detecting the temperature change in camera (1) housing to export corresponding temperature signal；
Multi-harmonic-oscillations portion (4), temperature detecting part (3) is coupled to receive temperature signal and be exported according to the value of temperature signal corresponding
The oscillator signal of frequency；
Frequency lsb decoder (5), there is a centre frequency for corresponding to normal temperature, be coupled to multi-harmonic-oscillations portion (4) and shaken with receiving
Swing signal, and by the frequency size of oscillator signal compared with centre frequency after export corresponding comparison signal；
Control unit (6), frequency lsb decoder (5) is coupled to receive comparison signal and output control signal；
Alarm unit, control unit (6) is coupled to receive control signal and in response to control signal；
When the temperature that temperature detecting part (3) is detected in camera (1) housing is above standard temperature so that the frequency of oscillator signal
Fall in the centre frequency of frequency lsb decoder (5), frequency lsb decoder (5) control control unit (6) work, so that warning is single
Member is warned.
2. a kind of traffic light control system according to claim 1, it is characterized in that：Coupling in described control unit (6)
Be connected to carry out self-locking in response to comparison signal so that control unit (6) keep working condition from lock unit (8).
3. a kind of traffic light control system according to claim 2, it is characterized in that：In described control unit (6) also
It is coupled with for cutting-off controlling unit (6) to release the reset portion (9) from lock unit (8) self-locking state.
4. a kind of traffic light control system according to claim 1, it is characterized in that：The frequency lsb decoder (5) is also
It is coupled with the adjustment portion (10) for adjusting centre frequency.
5. a kind of traffic light control system according to claim 1, it is characterized in that：The alarm unit includes sounding
Alarm (11) and light-emitting alarm (12).
6. a kind of traffic light control system according to any one of claim 1 to 5, it is characterized in that：The camera
(1) cavity (13) housed for temperature alarm (2) is offered on housing, the opening of the cavity (13) is covered with cover plate
(14), the both ends of the cover plate (14) are outward extended with support plate (15), and the support plate (15) passes through screw (16) and camera
(1) housing is mutually fixed；The temperature alarm (2) is fixed on the covering on face of cover plate (14).
7. a kind of traffic light control system according to claim 6, it is characterized in that：The opening of the cavity (13)
The step trough (17) housed for cover plate (14) is offered, the both sides of the step trough (17) offer what is housed for support plate (15)
Groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403809.8U CN206684950U (en) | 2017-04-18 | 2017-04-18 | A kind of traffic light control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403809.8U CN206684950U (en) | 2017-04-18 | 2017-04-18 | A kind of traffic light control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206684950U true CN206684950U (en) | 2017-11-28 |
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ID=60403310
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720403809.8U Active CN206684950U (en) | 2017-04-18 | 2017-04-18 | A kind of traffic light control system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960187A (en) * | 2017-12-25 | 2019-07-02 | 技嘉科技股份有限公司 | Electronic device, computer system and method with adjustable luminous frequency function |
-
2017
- 2017-04-18 CN CN201720403809.8U patent/CN206684950U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109960187A (en) * | 2017-12-25 | 2019-07-02 | 技嘉科技股份有限公司 | Electronic device, computer system and method with adjustable luminous frequency function |
| CN109960187B (en) * | 2017-12-25 | 2021-10-29 | 技嘉科技股份有限公司 | Electronic device, computer system and method with function of adjusting light emitting frequency |
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