CN201016986Y - Automobile over-speed governor - Google Patents
Automobile over-speed governor Download PDFInfo
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- CN201016986Y CN201016986Y CNU2007201404718U CN200720140471U CN201016986Y CN 201016986 Y CN201016986 Y CN 201016986Y CN U2007201404718 U CNU2007201404718 U CN U2007201404718U CN 200720140471 U CN200720140471 U CN 200720140471U CN 201016986 Y CN201016986 Y CN 201016986Y
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Abstract
The utility model is a vehicle speed governor, and comprises a vehicle speed sampling device connected with the output of a speed testing sensor, a counter connected with the output of the vehicle speed sampling device, a computation device connected with the output of the counter, a comparator connected with the output of the counter, and an overspeeding alarm connected with the output of the computation device. The vehicle speed sampling device receives an impulse signal from a speed-measuring sensor and converts the signal into a regularly-rectangular impulse signal. The counter counts the regularly-rectangular impulse signals output from the vehicle speed sampling device. The computation converts counting results of the counter into an actual vehicle speed value. The comparator compares the actual speed value with a pre-set limited speed value. With the utility model, when the actual speed of a vehicle exceeds the pre-set limited speed, the overspeeding alarm makes a sound and light alarm signal to prompt the user to slow down.
Description
Technical field
The utility model relates to a kind of speed-limiting device, the automobile overspeed governor of vehicle speed such as particularly a kind of restricting vehicle, diesel vehicle.
Background technology
In recent years, change along with people's living condition, automaker's cut-throat competition, car fare constantly descends, the impetus of private car development is particularly fierce, the recent statistics data presentation that national passenger car joint conference is announced, and Dec, whole nation passenger car sales volume recorded high again, reach 45.5 ten thousand, sequential growth rate 18%.Because the sales volume new peak was created in continuous before the end of the year two months in passenger car market, 2006, the Total sales volume in national passenger car market reached 5,000,000, increases by 26% on a year-on-year basis, and speedup surpasses 2 years in the past.According to incompletely statistics, the whole nation annual newly-increased driver surpass more than 10,000,000, and cumulative year after year.On the highway, owing to the traffic hazard that hypervelocity causes, more and more frequent, accident rate has the high impetus.The more firm new hand that drives of association, the accident rate of initiation is high especially, and ten traffic accidents nine times are fast, and this has been a undisputable fact.Our country probably has at present hundreds thousand of traffic hazards to take place every year, shows according to the data of traffic control department, has quite a few accident all to occur in highway and causes because of hypervelocity.Traffic department in all parts of the country is all constantly formulating various laws and regulations, is adopting various advanced persons' equipment and instrument to come restricted speed, and the accident rate that will be caused by hypervelocity drops to minimum degree.
Have begin that day of watch-dog from traffic department, the lawless person just begins to rack one's brains and tackles these watch-dogs, overlap false-trademark, lid CD, rubberizing paper even also have automatic conversion car plate, to reach the purpose that evades punishment, various means emerge in an endless stream.Popular privately in recent years on the market cyberdog, one of them the allusion quotation example that evades punishment exactly.
Summary of the invention
The purpose of this utility model provides a kind ofly can initiatively evade the automobile overspeed governor that causes traffic hazard because of driving over the speed limit.
The purpose of this utility model is achieved in that a kind of automobile overspeed governor, it is characterized in that comprising:
The tachogenerator of the pulse signal that measured automobiles travel speed and output are directly proportional with car speed;
Connect the speed of a motor vehicle sampling thief of described tachogenerator output, this speed of a motor vehicle sampling thief receives described pulse signal and converts thereof into the regular rectangular shape pulse signal from described tachogenerator;
The counter that connects described speed of a motor vehicle sampling thief output, this counter are counted the rectangular pulse signal of described speed sampling device output at the fixed time;
Connect the calculation element of described counter output, this calculation element is converted into the automobile values for actual speed to the count value of described counter;
The comparer that connects described calculation element output, this comparer is compared the values for actual speed of described calculation element output with the speed limit that sets in advance;
The overspeed alarm that connects described comparer output.
Said structure of the present utility model can guarantee, when the vehicle actual speed surpasses the speed limit that sets in advance, sends sound/visual alarm by overspeed alarm, slows down with the prompting user.
Automobile overspeed governor of the present utility model also comprises: connect the I/O end of calculation element and the data-carrier store that is used for storing at least the speed limit that sets in advance of comparator threshold input end respectively.
In an embodiment of the present utility model, the part of above-mentioned counter of the present utility model, calculation element, comparer and data-carrier store is made of a single-chip microcomputer.
In this embodiment, automobile overspeed governor of the present utility model also comprises: the user that described speed limit is set at least is provided with the unit, and this user is provided with the input end that the unit connects single-chip microcomputer; The display that is used to show the Vehicle Speed value that connects the single-chip microcomputer display port.
In this embodiment, described user is provided with the unit and has a plurality of buttons, the input end that an end ground connection of its each button, its other end connect current potential pull-up resistor and described single-chip microcomputer respectively.
In this embodiment, described overspeed alarm is the colored backlight display, comprises three transistors that connect three I/O of described single-chip microcomputer end respectively and the color monitor that is connected described three transistor collectors respectively.
In this embodiment, described data-carrier store is made up of two parts, and one is the EEPROM of single-chip microcomputer, and another is the static RAM (SRAM) of clock module.Like this, can be stored in the speed limit nominal data among the EEPROM of described single-chip microcomputer inside, the speed limit data storage that the user is provided with in the static RAM (SRAM) of clock module, thereby do not need to set up separately a dedicated data stores device, saved manufacturing cost.
In the utility model, it is the single-chip microcomputer of STC12C5412AD that described single-chip microcomputer can adopt model.
In addition,, therefore can solve processor well and receive the real-time problem of disturbing or unusual aftertreatment taking place, increase the stability of product greatly because the single-chip microcomputer of this model contains watchdog circuit.
Technique effect: than the recent cyberdog product of just reminding the car owner to slow down near the test probe of hypervelocity time of the underground fast sale in market at home, automobile overspeed governor of the present utility model has more the advantage of initiatively evading accident; And has advantages of excellent stability.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the block scheme of automobile overspeed governor of the present utility model;
Fig. 2 is the block scheme of an embodiment of the present utility model;
Fig. 3 is the physical circuit figure of block scheme shown in Figure 2;
Fig. 4 shows the input voltage waveform of speed of a motor vehicle sampling thief shown in Figure 3 and through the oscillogram of the output voltage waveforms of over-sampling;
Fig. 5 shows that user shown in Figure 3 is provided with the synoptic diagram of unit outward appearance.
Embodiment
Fig. 1 has shown the schematic diagram of automobile overspeed governor of the present utility model, and as can be seen from Figure 1, automobile overspeed governor comprises:
Vehicle speed measurement unit 1 has:
The tachogenerator 11 of the pulse signal that measured automobiles travel speed and output are directly proportional with car speed, in practice, can be existing speed pickup in the automobile directly as this tachogenerator 11;
Receive described pulse signals and convert thereof into the speed of a motor vehicle sampling thief 12 of regular rectangular shape pulse signal from described tachogenerator 11;
Computing unit 2 has:
At the fixed time to the counter 21 of the rectangular pulse signal counting of described speed sampling device output;
The count value of described counter 21 is converted into the calculation element 22 of automobile values for actual speed; In fact, this calculation element 22 also has the ability of read/writable memory device data;
Speed limit reminding unit 3 has:
At least store the data-carrier store 32 of the speed limit that sets in advance;
The comparer 31 that the values for actual speed of described calculation element output and the speed limit that sets in advance are compared, when actual speed during greater than the speed limit that sets in advance, these comparer 31 output alarm signals; In example shown in Figure 1, the speed limit that sets in advance is stored in the data-carrier store 32, and when compare operation, is read by calculation element 22, offers comparer 31.
Receive the alerting signal of described comparer output, send the overspeed alarm 33 of alerting signal.
Because the utility model can compare the speed of a motor vehicle numerical value of actual detected and the speed limit that sets in advance in real time, therefore when the vehicle actual speed surpasses the speed limit that sets in advance, can send sound/visual alarm by overspeed alarm, slow down with the prompting user.
Automobile overspeed governor of the present utility model also comprises: the user that described speed limit is set at least is provided with unit 4 and the display 5 that receives and show the automobile values for actual speed of described calculation element 22 outputs.
The user is provided with the input port that unit 4 connects calculation element 22.When operation, by user's manual operations (for example, pressing keys), be provided with or the modification speed limit, and then it write in the entry data memory 32 by calculation element 22 via calculation element 22.
Tachogenerator 11 of the present utility model can be to test the speed at Hall switch sensor being used in the mounting vehicle; Described speed sampling device 12 can be the input reshaper (following be elaborated with reference to Fig. 3) relatively that connects the Hall switch sensor output terminal.
Overspeed alarm 33 shown in Figure 1 can be color monitor and/or hummer.Shown display 5 can LCD.
In an embodiment shown in Figure 2 of the present utility model, the part of counter shown in Figure 1, calculation element, comparer and data-carrier store can be made of a single-chip microcomputer 9.In the case, automobile overspeed governor of the present utility model can also comprise: monitor the temperature sensor 6 of vehicle interior temperature in real time, this temperature sensor 6 connects an I/O end of described single-chip microcomputer; The power module 8 that connects single-chip microcomputer 9 power ends; And the clock module 7 that connects single-chip microcomputer 9 clock end.
In this embodiment, described user is provided with unit 4 and has a plurality of buttons, the respective input that an end ground connection of its each button, its other end connect current potential pull-up resistor and described single-chip microcomputer respectively (following describe with reference to Fig. 3).
In this embodiment, described overspeed alarm 33 is colored backlight displays, comprises three transistors that connect three I/O of described single-chip microcomputer end respectively and the color monitor that is connected described three transistor collectors respectively (following describe with reference to Fig. 3).
In this embodiment, described data-carrier store 32 is made up of two parts, and one is the EEPROM of single-chip microcomputer, and another is the static RAM (SRAM) (following describe with reference to Fig. 3) of clock module.Like this, can be stored in the speed limit nominal data among the EEPROM of described single-chip microcomputer inside, the speed limit data storage that the user is provided with in the static RAM (SRAM) of clock module, thereby do not need to set up separately a dedicated data stores device, saved manufacturing cost.
In the utility model, it is the single-chip microcomputer of STC12C5412AD that described single-chip microcomputer can adopt model.
In addition,, therefore can solve processor well and receive the real-time problem of disturbing or unusual aftertreatment taking place, increase the stability of product greatly because the single-chip microcomputer of this model contains watchdog circuit.
In the utility model embodiment as shown in Figure 2, automobile overspeed governor is a core with the high speed one chip microcomputer, the addition speed measuring unit, the speed calculation unit, data storage element, LCD display unit, the overspeed alarming unit, it can be fully and the tachogenerator of different automobile types coupling.Therefore the utility model equipment volume is little, intuitive is strong, easy to use, do not influence driving safety; Install simply, do not influence the original tachometer circuit of automobile and other circuit.
Below in conjunction with Fig. 3, Fig. 4 and Fig. 5 particular circuit configurations of the present utility model and principle of work are described.
Single-chip microcomputer STC12C5412AD is the core component of limiter of speed design, in circuit diagram U4, it is responsible for the pulse signal after 12 conversions of speed of a motor vehicle sampling thief is handled, the control that be responsible for to show, to the processing of keyboard signal, to operation of data, be responsible for the storage and the management of data, wherein U3 is 8MHz crystal (being clock module 7), for single-chip microcomputer 9 provides the clock source.STC12C5412AD has fast operation, and is low in energy consumption, the characteristics that antijamming capability is strong.It has 4 road PWM output, 8 tunnel ultra high speed A.The inner integrated MAX810 chip that resets, integrated EEPROM and watchdog circuit are adapted at highly reliable occasion such as automotive electronics, Industry Control and use.
Automobile adopts Hall switch sensor with inspection speed sensors 11, working power is 12V, automobile under steam, output and the directly proportional pulse signal of speed, high level is about 12V, in Fig. 3, speed of a motor vehicle sampling thief 12 is responsible for the signal of sensor input is changed, and U6 (LM393) and R3, R4, R7, R9 constitute relatively reshaper of input.Because may there be interference in the pulse signal of speed pickup input in actual applications, (as shown in Figure 4, wherein W1 is a sensor input waveform at the square wave through output rule after comparing reshaper; W2 is through exporting the waveform of single-chip microcomputer after the speed sampling module to).Because it is 5V that single-chip microcomputer 9 control modules require the high level of velocity pulse, so R9 is pulled to 5V, makes it to meet the requirement of single-chip microcomputer 9 counters.SPEED IN is that the back is handled to single-chip microcomputer P3.4 mouth to rate signal in the speed sampling unit in Fig. 3.
Fig. 5 has shown that the user is provided with the outward appearance of 5 buttons of unit 4, and these buttons are respectively: mute button, date button, button, color button, brightness button are set.
In Fig. 4, the user is provided with unit 4 and comprises: voltage is pulled to pull-up resistor R10, R11, R12, R13, the R14 of 5V, and the keyboard working current when being used to be increased in keyboard and pressing improves the antijamming capability of keyboard; With 5 button K1 to K5, the respective input that one end ground connection (GND) of its each button, its other end connect current potential pull-up resistor and described single-chip microcomputer respectively, keyboard be shown as label K1 (P1.5), K2 (P1.4), K3 (P1.3), K4 (P1.2) being connected of single-chip microcomputer in the drawings, K5 (P1.1) is connected respectively.
The display 5 of limiter of speed adopts LCD to show, LCD display can show current vehicle interior temperature, sound status, overspeed condition, current date, time, current road speed and the speed limit alarming value of current setting.In Fig. 3, HT1621 is the 32X4LCD driver, the built-in 256K RC of HT1621 oscillator, and there is optional 1/2,1/3 biasing in built-in LCD driving frequency source, is connected by simple three-way serial ports with single-chip microcomputer 9, and can regulates the LCD display voltage by the VLCD pin.CS (P2.1), WR (P1.7), DAT (P1.6) are single-chip microcomputer and the label that is connected of HT1621.
Temperature sensor 6 adopts the digital temperature sensor DS18B20 of DALLAS company one line technology, and it has the measuring accuracy height, and interface is simple, and volume is little, the characteristics that cost is low.Measuring temperature range is-55 ℃～+ 125 ℃, and measuring accuracy is ± 0.5 ℃, is connected with single-chip microcomputer by a line WEND (P1.0).According to the requirement of chip operation, resistance R 9 should be pulled to 5V among the figure.Temperature data directly is presented on the LCD after reading by single-chip microcomputer 9 controls.
Overspeed alarm 33 comprises a colored backlight display, comprises the triode Q1 of the demonstration of control R, G, B three looks, Q2, and Q3 controls the different brightness of three looks demonstration by the inner PWM controller of single-chip microcomputer and forms different Show Colors.The high level ON time of controlling three looks simultaneously by PWM is controlled the brightness of colored backlight.The light1 of single-chip microcomputer 9 (P2.6), light2 (P3.6), light3 (P2.7) port connect triode Q1, Q2 and Q3 respectively.
As selection, overspeed alarm can also comprise a sound prompt device, and the sound circuit of the speech data that " exceeds the speed limit now " such as an internal memory when single-chip microcomputer 9 detects hypervelocity, triggers this sound circuit and plays corresponding speech signal.
Clock module 7 is the U2 of DS1302 for model, and DS1302 is the trickle charge clock chip that DALLAS company releases, and includes the static RAM (SRAM) of a real-time clock/calendar and 31 bytes.Communicate by letter with single-chip microcomputer 9 by simple serial type interface.U1 is the 32.768K crystal among the figure, for DS1302 provides the clock source.Terminal (with three connecting lines) by label DS_SK, DS_IO, DS_RST is connected DS1302 with single-chip microcomputer 9, DS1302 is by this three serial type buses and single-chip microcomputer swap data, finish the storage of data, reading and revising the time, BT1 is a button cell, for DS1302 provides standby power supply, DS1302 RAM data after outage are not lost behind power cut-off, oscillator works on.
Power module 8 provides 12V working power for limiter of speed, and directly from the power taking of automobile 12V storage battery, working current is less than 200mA, and the 12V power supply is the limiter of speed power supply by 200mA resettable fuse F1 with after protecting diode D3.Utilize the characteristic of resettable fuse and the unilateal conduction principle of diode that power supply is protected after reversal connection and short circuit.HT7550 is the three-terminal voltage-stabilizing chip.12V is converted to 5V with power supply, makes it to satisfy the needs of back circuit.
Data storage 32 has the static RAM (SRAM) of EEPROM and clock module 7 (DS1302) to constitute by the inside of single-chip microcomputer 9 inside.
Speed limit data, nominal data and color select data need be after setting long preservation, not influenced by outage because there is EEPROM STC12C5412AD inside, can be erasable 100,000 times, reliability is very high, therefore nominal data can be kept at wherein.Speed limit data and color are selected data owing to often need to revise, and these data are stored in the static RAM (SRAM) of DS1302.
Further specify the basic process of velocity survey of the present utility model and speed limit reminding below.
In running car, tachogenerator 11 outputs and the directly proportional pulse signal of speed, through after the processing of speed data collection unit 12 to single-chip microcomputer 9 counters 21 ports, counter 21 pulse signals are carried out 2S (2 seconds) timer counter, multiply by coefficient after count results being delivered to single-chip microcomputer speed sampling result register then.For example the count value of 2S is 430, actual speed is 100km/h, then utilizes function of a single variable f (x)=ax+b, and (wherein a is a coefficient, x is a count value, b is zero point), the speed pulse signal of velocity survey unit input is converted to the actual speed data, and compare with the speed limit of setting, after travel speed is greater than setting speed, reminds the driver to slow down by sound and colored backlight, and carry out display alarm by control LCD display module.
Because adopted with the single-chip microcomputer is the control core unit, rate signal receiving element based on high megohm resistance comparator, make it this limiter of speed and relatively have very big operation flexibility with a lot of speed measuring Instruments in the past, can be installed on the vehicle of various models, by satisfying the speed pickup of different pulses after demarcating fully, the design of colored backlight in addition makes limiter of speed attractive in appearance, generous, hommization more.
That limiter of speed of the present utility model has is practical, volume is little, do not influence driver's safety, intuitively feel, the characteristics of easy and simple to handle, original circuit of not influencing automobile etc., also has been equipped with vehicle interior temperature meter (present most of automobile show all are the outer temperature of car).The electronic product that uses on automobile considers that from security standpoint various operations are easy more good more, and the volume of equipment is the smaller the better, most critical be to influence the visual safety of driver.Below be some crucial practical partial functions that the utility model is set:
1: demarcate speed per hour
Limiter of speed itself is provided with original demarcation according to the speed pickup of most of car manufactures, just can directly use after installing; If the speed pickup of nonstandard or other type, the technician of installation can enter the demarcation again that system carries out speed per hour afterwards by password according to the different pulse of this sensor.
2: set speed limit
Long by key (SET) one second is set, according to driver's target speed limit,, speed limit arbitrarily can be set between the 0-999km/h by four keys of " ∧ " " ∨ " "＜" "＞", by once being set, key (SET) can finish the setting of speed per hour alarming value more at last.
3: the date shows
Can show current date by " ∨ ", be provided with and to turn back to the speed show state by any key except the key (SET), then automatically return to the speed show state after three seconds not according to any key.
4: setting-up time and date
Equipment configuration high-octane lithium coin cells, generally can keep the time more than 5 years, if equipment is because some reason or need can be carried out resetting of time and date.
5: change speed limit with interior backlight color
According to everyone difference hobby, press "＞" key eight times continuously, can show seven kinds of different backlight colors respectively and close backlight color.Evening is when travelling at highway, and the backlight color in the speed limit is closed in suggestion, in order to avoid influence driver's sight line safety, do not exceed speed limit backlight color in addition but do not advise closing.
6: change above the flicker backlight color beyond the speed limit
Continuously, can show seven kinds of different colors respectively, after selected color, longly decontrol then, when the speed limit frame comes out the symbol of "---", promptly finish the flicker backlight color setting of overspeed prompting by "＞" key three seconds by "＞" key.
7: regulate lamplight brightness
Press "＜" key eight times continuously, can change eight other backlight illuminations of level respectively.
8: quiet control
Press the sound that " ∧ " can close overspeed prompting, LCD can show the quiet symbol of loudspeaker simultaneously, by once, can get back to normal auditory tone cues state again, and the quiet symbol of loudspeaker also can disappear simultaneously.Under the normal condition, do not advise closing sound.
The installation process of the utility model equipment is very simple, the above scale in general kart quick service shop just can, installation personnel is as long as find speed pickup from the wheel box position of automobile, again 3 lines above the sensor are picked out, be respectively power supply just, power-, vehicle speed signal, under the state that automobile key is opened, find out the positive and negative electrode of power supply earlier with universal meter, that remaining root is exactly the vehicle speed signal line, and connecting limiter of speed just can operate as normal.If the speed of limiter of speed speed of displaying and the instrument of automobile own is not inconsistent, can the speed per hour demonstration of limiter of speed be demarcated again according to explanation.
When installing, most important is exactly the position that the method and apparatus of wiring is put.When coming out from the wheel box wiring, shielding line will increase temperature thermal sleeve and will can both bear the high temperature about 200 degree under the general thermal sleeve normal condition as far as possible away from engine, can guarantee the safety of shielding line.Engine temperature in work if shielding line is run into cylinder body, can increase the degree of aging of shielding line than higher.
Limiter of speed can be placed on the position of left side of face on the Auto Instrument desk, and the installation method of similar radar for backing car mainly is in order not influence driver's sight line.
Claims (10)
1. automobile overspeed governor is characterized in that comprising:
The speed of a motor vehicle sampling thief (12) that connects described tachogenerator (11) output, this speed of a motor vehicle sampling thief (12) receives described pulse signal and converts thereof into the regular rectangular shape pulse signal from described tachogenerator (11);
The counter (21) that connects described speed of a motor vehicle sampling thief (12) output, this counter (21) are counted the rectangular pulse signal of described speed sampling device output at the fixed time;
Connect the calculation element (22) of described counter (21) output, this calculation element (22) is converted into the automobile values for actual speed to the count value of described counter;
The comparer (31) that connects described calculation element (22) output, this comparer (31) is compared the values for actual speed of described calculation element (22) output with the speed limit that sets in advance;
The overspeed alarm (33) that connects described comparer (31) output.
2. automobile overspeed governor according to claim 1 is characterized in that also comprising: connect the I/O end of calculation element (22) and the data-carrier store that is used for storing at least the speed limit that sets in advance (32) of comparer (31) threshold value input end respectively.
3. automobile overspeed governor according to claim 1 is characterized in that, the part of described counter (21), calculation element (22), comparer (31) and data-carrier store (32) is made of a single-chip microcomputer (9).
4. automobile overspeed governor according to claim 3 is characterized in that also comprising:
The user that described speed limit is set at least is provided with unit (4), and this user is provided with the input end that unit (4) connects single-chip microcomputer (9);
The display that is used to show the Vehicle Speed value (5) that connects single-chip microcomputer (9) display port.
5. automobile overspeed governor according to claim 4 is characterized in that, described user is provided with unit (4) and has a plurality of buttons, and an end ground connection of its each button, its other end connect the input end of current potential pull-up resistor and described single-chip microcomputer (9) respectively.
6. automobile overspeed governor according to claim 3, it is characterized in that, described overspeed alarm (33) is the colored backlight display, and comprise three transistor (Q1 that connect (9) three I/O ends of described single-chip microcomputer respectively, Q2, Q3) be connected described three transistors (Q1, Q2, Q3) color monitor of collector respectively.
7. automobile overspeed governor according to claim 3 is characterized in that also comprising:
Monitor the temperature sensor (6) of vehicle interior temperature in real time, this temperature sensor (6) connects an I/O end of described single-chip microcomputer (9);
The power module (8) that connects single-chip microcomputer 9 power ends; And
The clock module (7) that connects single-chip microcomputer 9 clock end.
8. automobile overspeed governor according to claim 7 is characterized in that, described data-carrier store (32) comprises the EEPROM of single-chip microcomputer (9) and the static RAM (SRAM) of clock module (7).
9. according to claim 1 or 3 described automobile overspeed governors, it is characterized in that described speed sampling device (12) is that reshaper is compared in the input that connects Hall switch sensor (11) output terminal.
10. automobile overspeed governor according to claim 3 is characterized in that, described single-chip microcomputer (9) is the STC12C5412AD single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201404718U CN201016986Y (en) | 2007-03-15 | 2007-03-15 | Automobile over-speed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201404718U CN201016986Y (en) | 2007-03-15 | 2007-03-15 | Automobile over-speed governor |
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| Publication Number | Publication Date |
|---|---|
| CN201016986Y true CN201016986Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201404718U Expired - Fee Related CN201016986Y (en) | 2007-03-15 | 2007-03-15 | Automobile over-speed governor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8470243B2 (en) | 2010-04-14 | 2013-06-25 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Sample plate for a biochemical analyzer |
| CN109131448A (en) * | 2018-08-30 | 2019-01-04 | 中车大连机车车辆有限公司 | speed display system |
-
2007
- 2007-03-15 CN CNU2007201404718U patent/CN201016986Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8470243B2 (en) | 2010-04-14 | 2013-06-25 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Sample plate for a biochemical analyzer |
| CN109131448A (en) * | 2018-08-30 | 2019-01-04 | 中车大连机车车辆有限公司 | speed display system |
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| 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: 20080206 Termination date: 20110315 |