CN203706338U - Bus door control device based on fire detection - Google Patents
Bus door control device based on fire detection Download PDFInfo
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- CN203706338U CN203706338U CN201320743041.0U CN201320743041U CN203706338U CN 203706338 U CN203706338 U CN 203706338U CN 201320743041 U CN201320743041 U CN 201320743041U CN 203706338 U CN203706338 U CN 203706338U
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- chip microcomputer
- bus
- bus door
- control device
- circuit
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Abstract
The utility model relates to a bus door control device based on fire detection, and belongs to the field of road traffic safety. The bus door control device comprises a temperature sensor, a smoke sensor, a central control circuit, a gate circuit, and an alarm, wherein the signal outputs of the temperature sensor and the smoke sensor are connected with the central control circuit, the output signal of the central control circuit is connected with the gate circuit and the alarm, and the output of the gate circuit is connected with a solenoid valve of a bus door pump; the temperature sensor and smoke sensor are used for acquiring temperature signals and smoke concentration signals in the bus, and inputting the temperature signals and smoke concentration signals to the central control circuit. The central control circuit makes a judgement for the fire according to the input signal, and sends out control signals to the gate circuit and the alarm. The gate circuit is connected with the solenoid valve of the bus door pump, to take response for controlling the bus door to open. The bus door control device is capable of carrying out effective monitoring and alarm for the fire of the bus, and opening the bus door automatically at emergency, so that the safety of a passenger when taking a bus is improved effectively. The bus door control device is simple in technology, less in refitting for the bus system, convenient to use, and low in cost.
Description
Technical field
The utility model belongs to traffic safety field, is specifically related to a kind of bus door control device detecting based on the condition of a fire.
Background technology
Recent years, bus in fire disaster accident frequently occurs, and has caused heavy losses to people's life and property, and bus safety problem is urgently to be resolved hurrily.
Although be provided with multiple launch escape system and passage on bus, for example safety hammer and skylight, open bus door and evacuate beyond doubt passenger's optimal path.Existing bus door is generally directly controlled by button by driver, and in case of emergency driver possibly cannot open car door in time.Though be provided with emergency opening spanner on car door,, because a variety of causes passenger possibly cannot effectively utilize, make it lose due effect at stake.Sum up existing security incident, it is the main reason that causes casualties that bus door is not opened in time.
Therefore, existing bus door opening ways exists serious potential safety hazard, must improve, to realize the opening ways of intellectuality, robotization.
Utility model content
For the defect existing in prior art, the purpose of this utility model is to provide a kind of bus door control device detecting based on the condition of a fire, solve the above-mentioned defect that existing bus door exists, in the utility model in the time there is the condition of a fire, can effectively detect the condition of a fire and alarm, and in the situation that the condition of a fire is serious, automatically open bus door, allow passenger withdraw rapidly scene.
The purpose of this utility model is achieved through the following technical solutions, a kind of bus door control device detecting based on the condition of a fire, it is characterized in that, described device is made up of some temperature sensors, some smoke transducers, central control circuit, gating circuit and alarm; The signal output of each temperature sensor and smoke transducer connects central control circuit, and the output signal of central control circuit is selecting circuit passband and alarm respectively, and gating circuit is connected with bus door pump solenoid valve.
Described central control circuit is single-chip microcomputer or DSP or ARM microprocessor, and single-chip microcomputer adopts AT89C51.
Described single-chip microcomputer X1, X2 mouth connect single-chip microcomputer crystal oscillating circuit, and the RST interface of single-chip microcomputer connects reset circuit.
Described gating circuit adopts the relay with ULN2003 driver module, the input end of driver module ULN2003 connects single-chip microcomputer P2.0, P2.1 mouth, an output terminal of driver module ULN2003 connects relay, another output terminal of driver module connects alarm the resistance of connecting, and relay is connected 12V power supply with the other end of alarm.
Described temperature sensor adopts DS18B20, and the data bit DQ of DS18B20 connects single-chip microcomputer P1.0 mouth.
Described smoke transducer adopts MQ-7, and the data bit D0 of MQ-7 connects single-chip microcomputer P1.1 mouth
Principle of work of the present utility model is the threshold value that is provided with temperature and smokescope in central control circuit, by temperature sensor, smoke transducer gathers temperature and the smokescope in bus, and reach central control circuit, central control circuit by internal processes by obtain temperature and the threshold value comparison of smokescope and setting, in the situation that not there is the condition of a fire, temperature and smokescope are lower than the threshold value of setting, central control circuit control gating circuit is in off-state, bus driver is by the switch of hand push button control car door, bus door is in normal operating conditions.In the time that temperature or smokescope exceed the threshold value of setting, central control circuit control gating circuit is in conducting state, and gating circuit enabling gate pump solenoid valve is opened rapidly car door, simultaneously, central control circuit control alarm gives the alarm, and reminding passengers is taken care, emergency evacuation.
Effect of the present utility model is can the bus condition of a fire effectively be monitored and be reported to the police, and automatically open at the critical moment bus door, solve the drawback that existing bus door exists, effectively improve the security that passenger rides, and technique is simple, repacking to existing bus system is less, easy to use, and cost is very low.
Brief description of the drawings
Fig. 1 structured flowchart of the present utility model;
Fig. 2 circuit connection diagram of the present utility model.
Embodiment
Further illustrate in conjunction with the accompanying drawings and embodiments the utility model, as shown in Figure 1, the utility model is made up of temperature sensor, smoke transducer, central control circuit, gating circuit and alarm; Temperature sensor is connected with central control circuit with smoke transducer, for central control circuit provides input signal, central control circuit is connected with gating circuit, alarm, for the two provides output signal, gating circuit is connected with bus door pump solenoid valve, for controlling the unlatching of bus door, the utility model utilizes the power supply on vehicle.
The present embodiment is selected DS18B20 temperature sensor and MQ-7 smoke transducer, and these sensors are arranged in 12 key points of bus inner top and bottom; Central control circuit adopts AT89C51 single-chip microcomputer, and gating circuit is realized by a relay with ULN2003 driver module, and they are arranged on the top of car door; Alarm BJ-3 is made up of the LED lamp of phonetic alarm and flicker, is arranged on the top of car door mouth.
As shown in Figure 2, single-chip microcomputer X1, X2 mouth connects single-chip microcomputer crystal oscillating circuit, for single-chip microcomputer provides the clock frequency of work.The RST interface of single-chip microcomputer connects reset circuit, and for realizing monolithic processor resetting function, the Vcc interface of single-chip microcomputer connects power supply.
The data bit DQ of temperature sensor DS18B20 connects single-chip microcomputer P1.0 mouth, connects in addition pull-up resistor to 5V power supply, makes circuit steady operation.By single-chip microcomputer P1.0 mouth, temperature sensor sends single-chip microcomputer to temperature signal in the bus collecting.
The data bit D0 of smoke transducer MQ-7 connects single-chip microcomputer P1.1 mouth.By single-chip microcomputer P1.1 mouth, smoke transducer sends single-chip microcomputer to smokescope signal in the bus collecting.
The input end of driver module ULN2003 connects single-chip microcomputer P2.0, P2.1 mouth, an output terminal of driver module ULN2003 connects relay, another output terminal of driver module connects alarm the resistance of connecting, and relay is connected 12V power supply with the other end of alarm.The function of driver module is to amplify voltage, and exports to alarm and relay as input voltage.Here, driver module is 12V by 5V voltage amplification.
The implementation process of described device is: before this device work, by the threshold value of single-chip microcomputer internal processes set temperature and smokescope.Temperature threshold is traditionally arranged to be between 80 ~ 85 degrees Celsius, and smokescope threshold value is traditionally arranged to be between 5000ppm ~ 6000ppm.After this device starts, temperature and smokescope in temperature sensor DS18B20 and smoke transducer MQ-7 Real-time Collection bus, and reach single-chip microcomputer, single-chip microcomputer by internal processes by the temperature obtaining and the threshold value comparison of smokescope and setting.When temperature or smokescope lower than set threshold value time, think in bus and do not occur the condition of a fire, single-chip microcomputer does not start driving circuit, relay is in off-state, bus driver is by the switch of hand push button control car door.In the time that temperature or smokescope exceed the threshold value of setting, single-chip microcomputer can signal to driving circuit, driving circuit drives relay closes, relay closes back door pump solenoid valve is activated, bus door is opened, and meanwhile, warning lamp and siren send warning, reminding passengers is taken care, emergency evacuation.
The utility model can be implemented with other concrete form, and does not depart from its spirit or essential characteristic.It is only illustrative and nonrestrictive that described embodiment is considered in all respects, for example: the 1) number of components and parts, type, specification and model etc.; 2) placement location, the connected mode etc. of components and parts; 3) arranging etc. of the selection of alarm and type of alarm; 4) selection of various parameters etc.Therefore, scope of the present utility model by appended claims but not foregoing description indicate.The meaning of equivalence techniques scheme and all changes of scope that fall into claim are included among its scope.
As shown in Figure 2, single-chip microcomputer X1, X2 mouth connects single-chip microcomputer crystal oscillating circuit, for single-chip microcomputer provides the clock frequency of work.The RST interface of single-chip microcomputer connects reset circuit, and for realizing monolithic processor resetting function, the Vcc interface of single-chip microcomputer connects microcontroller power supply.
The data bit DQ of temperature sensor DS18B20 connects single-chip microcomputer P1.0 mouth, connects in addition pull-up resistor to 5V power supply, makes circuit steady operation.By single-chip microcomputer P1.0 mouth, temperature sensor sends single-chip microcomputer to temperature signal in the bus collecting.
The data bit D0 of smoke transducer MQ-7 connects single-chip microcomputer P1.1 mouth.By single-chip microcomputer P1.1 mouth, smoke transducer sends single-chip microcomputer to smokescope signal in the bus collecting.
The input end of driver module ULN2003 connects single-chip microcomputer P2.0, P2.1 mouth, an output terminal of driver module ULN2003 connects relay, another output terminal of driver module connects alarm the resistance of connecting, and relay is connected 12V power supply with the other end of alarm.The function of driver module is to amplify voltage, and exports to alarm and relay as input voltage.Here, driver module is 12V by 5V voltage amplification.
The implementation process of described device is: before this device work, by the threshold value of single-chip microcomputer internal processes set temperature and smokescope.Temperature threshold is traditionally arranged to be between 80 ~ 85 degrees Celsius, and smokescope threshold value is traditionally arranged to be between 5000ppm ~ 6000ppm.After this device starts, temperature and smokescope in temperature sensor DS18B20 and smoke transducer MQ-7 Real-time Collection bus, and reach single-chip microcomputer, single-chip microcomputer by internal processes by the temperature obtaining and the threshold value comparison of smokescope and setting.When temperature or smokescope lower than set threshold value time, think in bus and do not occur the condition of a fire, single-chip microcomputer does not start driving circuit, relay is in off-state, bus driver is by the switch of hand push button control car door.In the time that temperature or smokescope exceed the threshold value of setting, single-chip microcomputer can signal to driving circuit, driving circuit drives relay closes, relay closes back door pump solenoid valve is activated, bus door is opened, and meanwhile, warning lamp and siren send warning, reminding passengers is taken care, emergency evacuation.
The utility model can be implemented with other concrete form, and does not depart from its spirit or essential characteristic.It is only illustrative and nonrestrictive that described embodiment is considered in all respects, for example: the 1) number of components and parts, type, specification and model etc.; 2) placement location, the connected mode etc. of components and parts; 3) arranging etc. of the selection of alarm and type of alarm; 4) selection of various parameters etc.Therefore, scope of the present utility model by appended claims but not foregoing description indicate.The meaning of equivalence techniques scheme and all changes of scope that fall into claim are included among its scope.
Claims (6)
1. the bus door control device detecting based on the condition of a fire, is characterized in that, described device is made up of temperature sensor, smoke transducer, central control circuit, gating circuit and alarm; The signal output of temperature sensor and smoke transducer connects central control circuit, and the output signal of central control circuit is selecting circuit passband and alarm respectively, and the output of gating circuit connects bus door pump solenoid valve.
2. the bus door control device detecting based on the condition of a fire according to claim 1, is characterized in that, described central control circuit is single-chip microcomputer or DSP or ARM microprocessor, and single-chip microcomputer adopts AT89C51.
3. the bus door control device detecting based on the condition of a fire according to claim 2, is characterized in that, described single-chip microcomputer X1, X2 mouth connect single-chip microcomputer crystal oscillating circuit, and the RST interface of single-chip microcomputer connects reset circuit.
4. the bus door control device detecting based on the condition of a fire according to claim 1, it is characterized in that, described gating circuit adopts the relay with ULN2003 driver module, the input end of driver module ULN2003 connects single-chip microcomputer P2.0, P2.1 mouth, an output terminal of driver module ULN2003 connects relay, another output terminal of driver module connects alarm the resistance of connecting, and relay is connected 12V power supply with the other end of alarm.
5. the bus door control device detecting based on the condition of a fire according to claim 1, is characterized in that, described temperature sensor adopts DS18B20, and the data bit DQ of DS18B20 connects single-chip microcomputer P1.0 mouth.
6. the bus door control device detecting based on the condition of a fire according to claim 1, is characterized in that, described smoke transducer adopts MQ-7, and the data bit D0 of MQ-7 connects single-chip microcomputer P1.1 mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743041.0U CN203706338U (en) | 2013-11-22 | 2013-11-22 | Bus door control device based on fire detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743041.0U CN203706338U (en) | 2013-11-22 | 2013-11-22 | Bus door control device based on fire detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706338U true CN203706338U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743041.0U Expired - Fee Related CN203706338U (en) | 2013-11-22 | 2013-11-22 | Bus door control device based on fire detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364441A (en) * | 2016-08-31 | 2017-02-01 | 宁波力匠机器人科技有限公司 | Manipulator |
| CN106401365A (en) * | 2015-07-31 | 2017-02-15 | 于福洋 | Automatic opening method for fire vehicle escape exit |
| CN106475848A (en) * | 2015-11-30 | 2017-03-08 | 湖南衡泰机械科技有限公司 | A kind of protective cover for numerical control machine tool |
| CN106975180A (en) * | 2017-04-13 | 2017-07-25 | 河南师范大学 | A kind of preventing damage fire-proof intelligent and safe bus system |
-
2013
- 2013-11-22 CN CN201320743041.0U patent/CN203706338U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401365A (en) * | 2015-07-31 | 2017-02-15 | 于福洋 | Automatic opening method for fire vehicle escape exit |
| CN106475848A (en) * | 2015-11-30 | 2017-03-08 | 湖南衡泰机械科技有限公司 | A kind of protective cover for numerical control machine tool |
| CN106364441A (en) * | 2016-08-31 | 2017-02-01 | 宁波力匠机器人科技有限公司 | Manipulator |
| CN106975180A (en) * | 2017-04-13 | 2017-07-25 | 河南师范大学 | A kind of preventing damage fire-proof intelligent and safe bus system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |