CN202345526U - Anti-rear-ending voice prompt device of heavy-duty truck - Google Patents
Anti-rear-ending voice prompt device of heavy-duty truck Download PDFInfo
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- CN202345526U CN202345526U CN2011204466820U CN201120446682U CN202345526U CN 202345526 U CN202345526 U CN 202345526U CN 2011204466820 U CN2011204466820 U CN 2011204466820U CN 201120446682 U CN201120446682 U CN 201120446682U CN 202345526 U CN202345526 U CN 202345526U
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- 206010039203 Road traffic accident Diseases 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
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Abstract
本实用新型公开了一种重型卡车防追尾语音提示装置，其特征在于，重型卡车上还设置有依次连接的距离信号输入单元、信息处理单元和语音提示单元；所述的距离信号输入单元安装在重型卡车前端靠下位置，信息处理单元和语音提示单元直接安装在重型卡车仪表盘上。本实用新型通过超声波测距传感器，实时监测与前车距离，并用语音提醒驾驶员，使驾驶员能够清楚地知道与前车的准确距离，减速慢行，保持车距，防止发生追尾事故，从而减少交通事故，避免人身及财产的损失。本实用新型具有制作方便，电路简单，成本低等特点。
The utility model discloses a voice prompting device for preventing rear-end collision of a heavy-duty truck, which is characterized in that the heavy-duty truck is further provided with a distance signal input unit, an information processing unit and a voice prompt unit which are sequentially connected; the distance signal input unit is installed on At the lower position of the front end of the heavy-duty truck, the information processing unit and the voice prompt unit are directly installed on the dashboard of the heavy-duty truck. The utility model monitors the distance with the vehicle in front in real time through the ultrasonic ranging sensor, and reminds the driver with voice, so that the driver can clearly know the exact distance from the vehicle in front, slow down and keep the distance between vehicles, and prevent rear-end collision accidents. Reduce traffic accidents and avoid personal and property losses. The utility model has the characteristics of convenient manufacture, simple circuit and low cost.
Description
Technical field
The utility model relates to vapour safety and sound prompt device, and is particularly a kind of based on the anti-sound prompt device that knocks into the back of micro controller system heavy duty truck.
Background technology
Along with Chinese economic development, the application of heavy duty truck is more and more wider, and its quantity is more and more.The operator's compartment of heavy duty truck is very high; Chaufeur is sitting in and sees highly lower car in the operator's compartment; There is the blind area in sight line, be difficult to confirm the distance of itself and truck front end, and major traffic accidents such as usually knock into the back even roll; Particularly arrive toll station or etc. during traffic lights, heavy duty truck and car rear-end collision often take place.Because the heavy duty truck quality is bigger, when chaufeur is found to knock into the back and when taking action, generation is difficult to avoid traffic accident.
Summary of the invention
The purpose of the utility model is, provides a kind of SCM Based heavy duty truck the anti-sound prompt device that knocks into the back.This device solves heavy duty truck the place ahead have the problem of pilot's line of vision blind area; Thereby the accident that actv. has avoided heavy duty truck and car to knock into the back; Promptly handle the information of ultrasonic ranging sensor input through the AT89C52 micro controller system; If distance reaches the setting value micro controller system and just begins to control sound prompt device work, thereby reaches the purpose of voice reminder chaufeur.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
The anti-sound prompt device that knocks into the back of a kind of heavy duty truck; Comprise automobile ignition switch, gauge panel, ultrasonic ranging sensor and car speed sensor; It is characterized in that, also include bonded assembly range signal input block, information process unit and voice alerting unit successively; Wherein, The range signal input block is installed in the heavy duty truck front end and leans on upper/lower positions; Information process unit and voice alerting unit are directly installed on the gauge panel, and power supply supplies power for range signal input block, information process unit and voice alerting unit after passing through the ignition lock step-down by storage battery.
The utility model also has following technical characterstic:
Said range signal input block adopts the US-100 ultrasonic distance measuring module, and it can be monitored and leading vehicle distance in real time, and sends to information process unit, further to handle.
Said information process unit adopts Atmel company to produce the AT89C52 micro controller system, the information of its receiving range signal input unit input in real time, and these information are handled fast and accurately, the control signal after voice alerting unit output processing then.
Said voice alerting unit adopts Beijing core sound exhibition to open up the PM5020 speech chip that the electronics technology Co., Ltd is produced; It can be real-time the processing of being exported of reception information process unit after control signal, and send the relevant voice prompting through the loudspeaker that drive this device.
Said information process unit and voice alerting unit can be installed in the gauge panel, and chaufeur can clearly be heard information of voice prompt.The range signal input block can be installed in the truck front end by under the position.
The utility model is monitored in real time and leading vehicle distance, and is used the voice reminder chaufeur through the ultrasonic ranging sensor; Make chaufeur can know clearly the accurate distance with front truck; Deceleration is gone slowly, and maintains safe distance, and prevents rear-end collision; Thereby the loss of the person and property is avoided in the minimizing traffic accident.The utlity model has easy to make, characteristics such as circuit is simple, and cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the circuit catenation principle figure of the utility model.
Fig. 3 is the workflow diagram of the utility model.
Below in conjunction with accompanying drawing and embodiment the particular content of the utility model is done further explain.
The specific embodiment
With reference to Fig. 1; The anti-sound prompt device that knocks into the back of the SCM Based heavy duty truck of the utility model; Comprise ignition lock, gauge panel, ultrasonic ranging sensor and car speed sensor, also include the range signal input block, information process unit and voice alerting unit.Wherein range signal input block, voice alerting unit are connected with information process unit respectively.
The range signal input block adopts the US-100 ultrasonic distance measuring module can realize the non-contact distance-measurement function of 2cm～4.5m, and precision can reach 0.3cm, has the wide range input voltage of 2.4～5.5V; Quiescent dissipation is lower than 2mA; Carry temperature sensor the range finding result is proofreaied and correct, have GPIO simultaneously, multiple signalling methods such as serial ports; Interior band house dog, working stability is reliable.
The AT89C52 micro controller system that adopts Atmel company to produce in the information process unit; It comprises the 8-bit microprocessor of High Performance, low-power consumption; Include 8k bytes can be erasable repeatedly read-only program memory (PEROM) and the random data memory device (RAM) of 256bytes, device adopts high density, the nonvolatile storage technologies production of Atmel company.Information process unit mainly receives and handles the information that the range signal input block transmits, and to voice alerting unit unit output control signal.
Voice alerting unit adopts Beijing core sound exhibition to open up the PM5020 speech chip that the electronics technology Co., Ltd is produced, and this chip FLASHRAM structure can erasable repeatedly typing, and the life-span is more than 10,000 times; Power line voltage 3-6V, quiescent current 1uA, working current 50mA, the loudspeaker that direct drive is 8 ohm 0.5 watt; The voice of recording can reach 128 sections totally 20 seconds; Carry eight input ports, nine output ports, function all can be by User Defined; Cooperate programming software can develop parallel, string property, various control pattern such as intelligent; Development system supports the user to this assembly online programming (ISP).
Information process unit and voice alerting unit can be directly installed on the gauge panel, and the range signal input block can be installed in the heavy duty truck front end and lean on upper/lower positions.
With reference to Fig. 2, the power supply of device will be reduced to 5V confession system through the ignition lock power supply voltage by storage battery by circuit of three-terminal voltage-stabilizing integrated LM7805 and use.The P3.5 mouth of single chip computer AT 89C52 receives the car speed sensor signal, and voice system is not worked when the speed of a motor vehicle is zero, and voice system is just worked when the speed of a motor vehicle is non-vanishing.The Trig mouth of US-100 ultrasonic distance measuring module links to each other with the P3.4 mouth with the P1.0 mouth of single chip computer AT 89C52 respectively with the Echo mouth; After the high level signal that single chip computer AT 89C52 sends 10us at least through the P1.0 mouth is given the US-100 ultrasonic distance measuring module; Module is sent the square wave of 8 40khz automatically, and whether detection has signal to return automatically, has signal to return; Produce a high level at the P3.4 of single chip computer AT 89C52 mouth; The time that high level continues be exactly super sonic from being transmitted into the time of returning, single chip computer AT 89C52 measures the time that the P3.4 mouth receives high level, just can calculate measuring distance: measuring distance=(the high level time * velocity of sound (340m/s))/2.The PM5020 speech chip can be recorded 128 sections recording, if need to control arbitrary section voice in playing 128 sections, can pass through K1 (data terminal), K2 (clock end) serial ground input segment number.Data terminal is effective during rising edge clock, and data low order is preceding.The address of all voice segments is 80H～FFH.O1 is the busy signal end, during high potential, and speech play, the busy signal of playing PM5020 when finishing drags down.The K1 of PM5020 speech chip, K2, O1 mouth link to each other with P3.2, P3.1, the P3.0 mouth of AT89C52.The PM5020 speech chip is controlled the 0.5 watt of loudspeaker work in 8 Europe through SP1 mouth control aerotron 8050.
With reference to Fig. 3, it is as follows that the device workflow put forward in the SCM Based heavy duty truck voice of the utility model: ignition lock is connected, the micro controller system electrification reset; Program initialization; Beginning to detect the signal of speed of a motor vehicle input, be just to start distance measuring equipment (DME) work when the speed of a motor vehicle is non-vanishing, otherwise distance measuring equipment (DME) is not worked; What receive records distance when the 4m, carries out voice reminder " current spacing is 4m "; What receive records distance when the 2m, carries out voice reminder " current spacing is 2m "; What receive records distance when the 1m, carries out voice reminder " current spacing is 1m "; What receive records distance when the 0.5m, carries out voice reminder " current spacing is 0.5m "; What receive records distance when the 0.3m, carries out voice reminder " carefully to knock into the back ", otherwise returns.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204466820U CN202345526U (en) | 2011-11-11 | 2011-11-11 | Anti-rear-ending voice prompt device of heavy-duty truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204466820U CN202345526U (en) | 2011-11-11 | 2011-11-11 | Anti-rear-ending voice prompt device of heavy-duty truck |
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| Publication Number | Publication Date |
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| CN202345526U true CN202345526U (en) | 2012-07-25 |
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| CN2011204466820U Expired - Fee Related CN202345526U (en) | 2011-11-11 | 2011-11-11 | Anti-rear-ending voice prompt device of heavy-duty truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454642A (en) * | 2013-09-05 | 2013-12-18 | 天津理工大学 | Short-distance ultrasonic wave distance measuring system based on single chip microcomputer |
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2011
- 2011-11-11 CN CN2011204466820U patent/CN202345526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454642A (en) * | 2013-09-05 | 2013-12-18 | 天津理工大学 | Short-distance ultrasonic wave distance measuring system based on single chip microcomputer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121111 |