CN2857022Y - Overspeed alarmer - Google Patents
Overspeed alarmer Download PDFInfo
- Publication number
- CN2857022Y CN2857022Y CN 200520133285 CN200520133285U CN2857022Y CN 2857022 Y CN2857022 Y CN 2857022Y CN 200520133285 CN200520133285 CN 200520133285 CN 200520133285 U CN200520133285 U CN 200520133285U CN 2857022 Y CN2857022 Y CN 2857022Y
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- overspeed
- sensor
- alarm
- circuit
- acoustic
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Abstract
Provided is an overspeed alarm capable of alarm accurately in time without disassembling the vehicle, and avoiding overspeed without changing the primary line to ensure safety. The utility model is capable of forwardly and accurately reminding the driver of overspeed without disassembling the vehicle and changing the primary line. An overspeed alarm comprises a sensor, a detection circuit, an arithmetic circuit, a sound and light alarm device and a display, wherein the sensor is fixed on the vehicle drive shaft and connected with the detection circuit, the detection circuit is connected with the arithmetic circuit which connecting with the sound and light alarm device and the display. The impulse signal outputted from the sensor arranged on the vehicle drive shaft is converted into rotary speed signal by the arithmetic circuit which compares the predetermined number value with the actual rotary speed and then transmits the overspeed signal to the sound and light alarm device.
Description
Technical field
The utility model relates to a kind of motor vehicle fittings, particularly a kind of overspeed alarm device.
Background technology
According to statistics, traffic hazard is more than half causes owing to exeeding the regulation speed to travel.The epistasis restriction is carried out to the travel speed of motor vehicles in light of the circumstances in each big and medium-sized cities, reduces the generation of traffic hazard.Usually the mode that tests the speed from car is adopted in the supervision that motor vehicles are driven over the speed limit, and the one, by traffic-police's range estimation, the 2nd, with the radar trap monitoring, the former person judges that by rule of thumb error is very big; The latter can only supervise a certain vehicle in the wagon flow in special time and specific stroke.For the unit vehicle, if on automobile, install an overspeed alarm additional, when automobile surpasses set safe speed, will send alerting signal, slow down to remind the driver, thereby avoid accident to take place.More existing overspeed prompting device major parts are to have adopted interior some trigger mechanisms of installing of kilometer table to realize the warning effect.Also have plenty of transmitter need on the way be installed, the effect that receiver is realized overspeed alarming is installed in the car.Also there are some installing mechanisms on car kilometer table axle to realize, the effect that tests the speed and report to the police.But existing at present these electromechanical alarm device complexity, cost is higher, and what have need carry out dismounting, transformation to vehicle, implements to be difficult for.
The utility model content
The purpose of this utility model just is: a kind of overspeed alarm is provided, can be timely, and report to the police accurately, and need not the dismounting vehicle, and can not do any change to the original circuit of vehicle, avoid the person of controlling when not noticing speed per hour, overtime prescribed limits has been guaranteed traffic safety.The present invention does not relate to the dismounting vehicle, can not do any change to the original circuit of vehicle.Can initiatively remind the driver whether to drive over the speed limit accurately simultaneously.
For solving the problems of the technologies described above, technical scheme provided by the utility model is:
A kind of overspeed alarm comprises sensor and sensing circuit, also comprises computing circuit, acoustic-optic alarm, display; Sensor is fixed on the vehicle rotation axis, is connected with sensing circuit, and sensing circuit links to each other with computing circuit, and computing circuit connects acoustic-optic alarm and display; The pulse signal that sends by the sensor that is installed on the vehicle rotation axis becomes tach signal to the pulse conversion of signals through computing circuit, and computing circuit sends overspeed signal to acoustic-optic alarm after the numerical value set and vehicle actual speed are compared.
Described computing circuit, acoustic-optic alarm and display equipment are in a control is closed, and control enclosure is provided with switch and the function key that is connected with computing circuit, acoustic-optic alarm and display equipment respectively.
Described sensor is magnetic, optical signal generator.
Described sensing circuit comprises that infrared emission receives sensing head.
Described sensor is a reflection infrared sensor.
According to the technical scheme that the utility model provides, it has following advantage with respect to prior art:
Sensor is fixed on the vehicular transmission shaft, the rotation situation of direct sense vehicle transmission shaft, convert the velocity of rotation of vehicular transmission shaft signals such as to magnetic or light, pass to sensing circuit, after comparison by computing circuit, the computing, the work of control acoustic-optic alarm, this control type of alarm are very accurately, in time.Computing circuit, acoustic-optic alarm and display equipment can be contained in the control enclosure, be placed in the pilothouse local eaily, and needn't existing weaponry and equipment in the car be reequiped, easy to use, also can look the concrete condition in the car, said apparatus is installed in position easily, and need not existing equipment is dismantled, transformed, the safety that helps guaranteeing vehicle is controlled and the applying of equipment.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is a principle of work synoptic diagram of the present utility model;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the logical operation circuit figure of a kind of embodiment of the present utility model;
Fig. 4 is the display circuit of a kind of embodiment of the present utility model;
Fig. 5 is a kind of embodiment sensor circuit of the present utility model.
The figure number explanation:
1 pulse signal, 11 wheels, 12 rotation axiss
13 sensors, 2 control enclosurees, 21 computing circuits
22 acoustic-optic alarms, 23 displays, 3 storage batterys
Embodiment
A kind of overspeed alarm as shown in Figure 2, comprises sensor 13 and sensing circuit (not shown in the figures, as prior art), also comprises computing circuit 21, acoustic-optic alarm 22, display 23.Sensor 13 is fixed on the rotation axis 12 of wheel of vehicle 11, is connected with sensing circuit, and sensing circuit concatenation operation circuit 21, computing circuit 21 connects acoustic-optic alarm 22 and display 23; Pulse signal 1 by the sensor that is installed on the vehicle rotation axis 12 sends becomes tach signal to the pulse conversion of signals through sensing circuit, and computing circuit 21 is compared numerical value and the vehicle actual speed set, draws the judgement of whether reporting to the police.Control enclosure 2 automobile battery 3 of also meeting sb. at the airport, storage battery 3 provides power supply for each circuit.
When sensor 13 rotated at transmission shaft, it made the magnetic resistance of the magnetic circuit induced potential that generation is directly proportional with transmission shaft in coil that changes.
J3 and R8, Q5 etc. form monostable timing circuit, and when measured axis rotated, an inductive impulse of whenever sending here was triggered and exports one and decide pulse, so the mean value of output square wave is proportional to the measured axis rotating speed.Pass the signal to initialization circuit then and compare, reach the warning effect.
As an embodiment, the hardware of this instrument is formed and is comprised:
ATMEGA48 single-chip microcomputer, NPN type metal be near switch, three charactrons, and four buttons, one is power switch, the 2nd, the model selection button, three or four is increase and decrease buttons, a hummer, a luminotron, the chip MAX809 that resets, LM2576 voltage transitions chip.
Fig. 3 is the logical operation circuit figure of this embodiment; Fig. 4 is the display circuit of this embodiment; Fig. 5 is the sensor circuit of this embodiment.
Increased the chip MAX809 that resets, its effect is when guaranteeing to power on and when the power supply unstable operation, guarantees that single-chip microcomputer is fine to reset and steady operation.Use LM2576 voltage transitions chip, its wide input voltage range, the conversion efficiency height can not generate heat.Guaranteed stable operating voltage, the work reliable and stable for single-chip microcomputer provides assurance.The charged power sense circuit of the single-chip microcomputer of selecting for use itself, its effect is the same with MAX809, all is the working stability that guarantees single-chip microcomputer, and inner band EEPROM can preserve data, and power down can not lost yet.Preserve the radix value, limit value and other data that need power down not lose.
Use C language editor steering logic,, be easy to safeguard that program speed is fast, and is reliable and stable because the C language is visual good.
Press mode key, enter rotating speed alarm limit definite value and set, press add-substract key, alarming value is 40,60, and 80,90,100,110, conversion between 120 is up to choosing.The value of configuring is pressed mode key again, and the warning value of setting is saved in the single-chip microcomputer.The driver reports to the police in the control enclosure setting value, and control enclosure is an alert data by internal arithmetic circuit setting value so, and when the data of the data that read from transmission shaft and driver's setting are coincide mutually or exceeded setting value, control enclosure will send the third contact of a total solar or lunar eclipse and report to the police.Otherwise then do not excite third contact of a total solar or lunar eclipse warning device.Thereby the driver also can be known whether when not caring for appearances to drive over the speed limit.
When work, as long as the speed of a motor vehicle surpasses this setting value, hummer just rings, and luminotron is just glittering, tells the speed of a motor vehicle to surpass setting value.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (5)
1, a kind of overspeed alarm comprises sensor and sensing circuit, it is characterized in that: also comprise computing circuit, acoustic-optic alarm, display; Sensor is fixed on the vehicle rotation axis, is connected with sensing circuit, and sensing circuit links to each other with computing circuit, and computing circuit connects acoustic-optic alarm and display; The pulse signal that sends by the sensor that is installed on the vehicle rotation axis becomes tach signal to the pulse conversion of signals through computing circuit, and computing circuit sends overspeed signal to acoustic-optic alarm after the numerical value set and vehicle actual speed are compared.
2, the described overspeed alarm of claim 1, it is characterized in that: described computing circuit, acoustic-optic alarm and display equipment are in a control is closed, and control enclosure is provided with switch and the function key that is connected with computing circuit, acoustic-optic alarm and display equipment respectively.
3, overspeed alarm as claimed in claim 1 is characterized in that: described sensor is magnetic, optical signal generator.
4, overspeed alarm as claimed in claim 1 is characterized in that: described sensing circuit comprises that infrared emission receives sensing head.
5, overspeed alarm as claimed in claim 1 is characterized in that: described sensor is a reflection infrared sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133285 CN2857022Y (en) | 2005-11-21 | 2005-11-21 | Overspeed alarmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133285 CN2857022Y (en) | 2005-11-21 | 2005-11-21 | Overspeed alarmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857022Y true CN2857022Y (en) | 2007-01-10 |
Family
ID=37600326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520133285 Expired - Fee Related CN2857022Y (en) | 2005-11-21 | 2005-11-21 | Overspeed alarmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857022Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675907A (en) * | 2016-03-31 | 2016-06-15 | 中国神华能源股份有限公司 | Speed measuring device, slag conveyor structure and power plant boiler |
| CN107908131A (en) * | 2017-11-02 | 2018-04-13 | 云南昆钢电子信息科技有限公司 | A kind of underworkings vehicle speed measuring device |
| CN108152523A (en) * | 2017-12-17 | 2018-06-12 | 斯凯伦动力设备科技（兴化）有限公司 | A kind of automobile auxiliary power unit transmission shaft detection device |
| CN109026383A (en) * | 2018-07-09 | 2018-12-18 | 大同北方天力增压技术有限公司 | A kind of supercharger speed monitoring record and fault pre-alarming device and method for early warning |
-
2005
- 2005-11-21 CN CN 200520133285 patent/CN2857022Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675907A (en) * | 2016-03-31 | 2016-06-15 | 中国神华能源股份有限公司 | Speed measuring device, slag conveyor structure and power plant boiler |
| CN107908131A (en) * | 2017-11-02 | 2018-04-13 | 云南昆钢电子信息科技有限公司 | A kind of underworkings vehicle speed measuring device |
| CN108152523A (en) * | 2017-12-17 | 2018-06-12 | 斯凯伦动力设备科技（兴化）有限公司 | A kind of automobile auxiliary power unit transmission shaft detection device |
| CN109026383A (en) * | 2018-07-09 | 2018-12-18 | 大同北方天力增压技术有限公司 | A kind of supercharger speed monitoring record and fault pre-alarming device and method for early warning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |