CN101402348B - Checking method and system for fastening safety belt - Google Patents
Checking method and system for fastening safety belt Download PDFInfo
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- CN101402348B CN101402348B CN2008101464474A CN200810146447A CN101402348B CN 101402348 B CN101402348 B CN 101402348B CN 2008101464474 A CN2008101464474 A CN 2008101464474A CN 200810146447 A CN200810146447 A CN 200810146447A CN 101402348 B CN101402348 B CN 101402348B
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Abstract
The invention discloses a method for inspecting safety belt wearing and an inspecting system for the same. The embodiment of the invention judges if a passenger wears the safety belt according to the comprehensive inspection to the pressure on a button of the safety belt and the temperature, the pressure of a seat unit so as to acquire the wearing condition of the safety belt and the occupation condition of seats, and finally outputs and displays the wearing condition of the safety belt and the occupation condition of the seats, thereby realizing automatic inspecting or calculating of the wearing condition of the safety belt and the occupation condition of the seats, reducing the workload for the related staff of aircrafts or vehicles, improving the efficiency of inspecting or calculating the wearing condition of the safety belt and the occupation condition of the seats, and improving the reliability of inspection or calculation.
Description
Technical field
The present invention relates to the electronic communication field, relating in particular to a kind of safety strap pendant is inspection method and inspection system thereof.
Background technology
As everyone knows, the safety strap of aircraft or vehicle outfitting can be protected staff on aircraft or the vehicle and passenger's safety, forgets the situation of wearing and fastening the safety belt yet may occur some personnel sometimes.In order to guarantee the safety of all personnel on aircraft or the vehicle, usually needing related work personnel hand inspection or statistics safety strap pendant on aircraft or the vehicle is situation, yet the seat on aircraft or vehicle more for a long time, the work capacity of the situation that hand inspection or statistics passenger pendant are fastened the safety belt is bigger, and the efficient of inspection or statistics is lower, reliability is low.
Summary of the invention
The invention provides a kind of safety strap pendant is inspection method and inspection system thereof, is situation and Seats Occupied Information to realize that inspection automatically or statistics safety strap are worn, and alleviates the work capacity of related work personnel on aircraft or the vehicle, raising inspection or statistical efficiency and reliability.
For achieving the above object, it is inspection method that the embodiment of the invention provides a kind of safety strap to wear on the one hand, may further comprise the steps:
Pressure sensor carries out pressure detection to the seat, obtains the force value that puts on the described seat, and described force value is sent to the first pressure comparator;
The described first pressure comparator judges whether the force value that receives reaches predefined first pressure threshold;
If described force value reaches described first pressure threshold, then trigger infrared temperature sensor described seat is carried out temperature detection, obtain the temperature value on the described seat, and described temperature value is sent to temperature comparator, otherwise, finish this detection;
Described temperature comparator judges whether the temperature value that receives reaches predefined temperature threshold;
If described temperature value reaches described temperature threshold, then triggering the safety strap pendant is that sensor detects the pressure on the safety strap setting fastening at described seat, obtains the force value on the safety strap setting fastening, and described force value is sent to the second pressure comparator, otherwise, finish this detection;
The described second pressure comparator judges whether the force value that receives reaches predefined second pressure threshold;
If the force value on the described safety strap setting fastening does not reach described second pressure threshold, the signal generator that then triggers the sound and light alarm module produces first signal, and described first signal is sent to the A/D converter of described sound and light alarm module, otherwise, the signal generator of described triggering sound and light alarm module produces secondary signal, and secondary signal is sent to the A/D converter of described smooth alarm module;
Described first signal or secondary signal that described A/D converter will receive convert cooresponding binary digital signal to, and described binary digital signal is sent to sender unit;
Described sender unit is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires with the binary digital signal that receives, and by twisted-pair feeder described Frame is sent to cooresponding regional processing unit then;
Described regional processing unit reports to total processing unit with the Frame that receives by twisted-pair feeder;
Described total processing unit is analyzed the Frame that described regional processing unit reports, and obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit after the D/A conversion;
Described display unit shows that the safety strap pendant that described total processing unit obtains is information and seat occupancy information.
Wherein, when a plurality of described seat, all wearing according to above-mentioned safety strap in each seat is that inspection method detects.
On the other hand, it is inspection system that the embodiment of the invention also provides a kind of safety strap to wear, and comprising:
The unit, seat, whether be used to detect the passenger wears and fastens the safety belt, if wearing, described passenger do not fasten the safety belt, then produce first signal, and described first signal reported to regional processing unit with the form of the Frame that meets the IEEE802.3 LAN protocol and require, otherwise the generation secondary signal, and described secondary signal reported to described regional processing unit with the form of the Frame that meets the IEEE802.3 LAN protocol and require;
The zone processing unit, the Frame that is used for receiving reports to total processing unit by twisted-pair feeder;
Total processing unit, be used to analyze the Frame that described regional processing unit reports, obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit after D/A (D/A) conversion;
Display unit is used to show that the safety strap pendant that described total processing unit obtains is information and seat occupancy information.
Wherein, the unit, seat further comprises:
Pressure sensor is used for the seat is carried out pressure detection, obtains the force value that puts on the described seat, and force value is sent to the first pressure comparator by lead;
The first pressure comparator is used to judge whether the force value that receives reaches predefined first pressure threshold;
Infrared temperature sensor, be used for when the described first pressure comparator judges that described force value reaches described first pressure threshold, described seat is carried out temperature detection, obtain the temperature value on the described seat, and described temperature value is sent to temperature comparator by lead, otherwise, finish this detection;
Temperature comparator is used to judge whether the temperature value that receives reaches predefined temperature threshold;
It is sensor that safety strap is worn, be used for when described temperature comparator judges that described temperature value reaches described temperature threshold, pressure on the safety strap setting fastening at described seat is detected, obtain the force value on the safety strap setting fastening, and described force value is sent to the second pressure comparator by lead, otherwise, finish this detection;
The second pressure comparator is used to judge whether the force value that receives reaches predefined second pressure threshold;
The sound and light alarm module, be used for producing first signal or secondary signal according to the comparative result of the described second pressure comparator, convert described first signal or secondary signal to binary digital signal, and described binary digital signal is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires is sent to regional processing unit by twisted-pair feeder.
Wherein, the sound and light alarm module further comprises:
Signal generator, be used for when the described second pressure comparator judges that force value on the described safety strap setting fastening does not reach described second pressure threshold, produce first signal, and described first signal is sent to A/D converter by lead, otherwise, produce secondary signal, and described secondary signal biography is delivered to described A/D converter by lead;
A/D converter, described first signal or the secondary signal that are used for receiving convert cooresponding binary digital signal to, and described binary digital signal is sent to sender unit by lead;
Sender unit, the described binary digital signal that is used for receiving are packaged into the Frame of the frame format that meets the requirement of IEEE802.3 LAN protocol, and by twisted-pair feeder described Frame are sent to cooresponding regional processing unit.
Wherein, it is that inspection system comprises a plurality of unit, described seat and a plurality of described regional processing unit that described safety strap is worn, and several unit, described seat are connected with a described regional processing unit by twisted-pair feeder, and described regional number of processing units is decided according to the quantity of unit, described seat.
Wherein, described a plurality of regional processing unit all is connected with described total processing unit by twisted-pair feeder.
Wherein, described total processing unit is connected with described display unit by data line.
Wherein, described regional processing unit is specially concentrator, and described total processing unit is specially control computer.
It is that inspection system is crossed the seat pressure to the unit, seat that the safety strap of the embodiment of the invention is worn, the comprehensive detection of the pressure on temperature and the safety strap setting fastening is judged whether the passenger wears and is fastened the safety belt, thereby obtaining the safety strap pendant is situation and Seats Occupied Information, output at last shows that it is situation and Seats Occupied Information that safety strap is worn, therefore situation and Seats Occupied Information that automatic inspection or statistics passenger wear and fasten the safety belt have been realized, alleviated aircraft or vehicle related work personnel's work capacity, having improved its inspection or having added up the safety strap pendant is the efficient of situation and Seats Occupied Information, has improved the reliability of checking or adding up.
Description of drawings
It is the system architecture scheme drawing of inspection system that Fig. 1 wears for the safety strap of the embodiment of the invention;
Fig. 2 is the apparatus structure scheme drawing of the unit, seat of the embodiment of the invention;
It is the inspection method diagram of circuit that the safety strap of Fig. 3 embodiment of the invention is worn.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail:
With reference to figure 1 and Fig. 2, it is inspection system that the safety strap of the embodiment of the invention is worn, and is made of unit, seat 1, regional processing unit 2, total processing unit 3 and display unit 4.Wherein, unit, seat 1 has a plurality of, its concrete quantity is consistent with the amount of seats of aircraft or vehicle, and unit area, a seat (for example unit area, a seat is formed at a delegation or a row seat) is formed in several unit, seat, each one of unit area, seat correspondence and its all unit, seat 1 are by twisted-pair feeder bonded assembly zone processing unit 2, and all regional processing units 2 are connected with total processing unit 3 by twisted-pair feeder, and total processing unit is connected with display unit 4 by data line again.It is that inspection system can adopt the IEEE802.3 agreement to constitute a local area network that whole safety strap is worn.Wherein, regional processing unit 2 is specially concentrator, and total processing unit 3 is specially control computer, unit, seat 1 as client.
Wearing at above-mentioned safety strap is in the inspection system, unit, seat 1, whether be used to detect the passenger wears and fastens the safety belt, if wearing, described passenger do not fasten the safety belt, then produce first signal, and described first signal reported to regional processing unit 2 with the form of the Frame that meets the IEEE802.3 LAN protocol and require, otherwise produce secondary signal, and described secondary signal is reported to described regional processing unit 2 with the form of the Frame that meets the IEEE802.3 LAN protocol and require.Zone processing unit 2, the Frame that is used for receiving reports to total processing unit 3 by twisted-pair feeder.Total processing unit 3, be used to analyze the Frame that described regional processing unit 3 reports, obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit 4 after D/A (D/A) conversion.Display unit 4 is used to show that the safety strap pendant that described total processing unit 3 obtains is information and seat occupancy information.
Wherein, unit, above-mentioned seat 1 further comprises: pressure sensor 11, be used for the seat is carried out pressure detection, and obtain the force value that puts on the described seat, and force value is sent to the first pressure comparator 12 by lead.The first pressure comparator 12 is used to judge whether the force value that receives reaches predefined first pressure threshold.Infrared temperature sensor 13, be used for when the described first pressure comparator 12 judges that described force value reaches described first pressure threshold, described seat is carried out temperature detection, obtain the temperature value on the described seat, and described temperature value is sent to temperature comparator 14 by lead, otherwise, finish this detection; Temperature comparator 14 is used to judge whether the temperature value that receives reaches predefined temperature threshold.It is sensor 15 that safety strap is worn, be used for when described temperature comparator 14 judges that described temperature value reaches described temperature threshold, pressure on the safety strap setting fastening at described seat is detected, obtain the force value on the safety strap setting fastening, and described force value is sent to the second pressure comparator 16 by lead, otherwise, finish this detection.The second pressure comparator 16 is used to judge whether the force value that receives reaches predefined second pressure threshold.Sound and light alarm module 17, be used for producing first signal or secondary signal according to the comparative result of the described second pressure comparator 16, convert described first signal or secondary signal to binary digital signal, and described binary digital signal is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires is sent to regional processing unit 2 by twisted-pair feeder.
Wherein, above-mentioned smooth alarm module 17 further comprises: signal generator 170, be used for when the described second pressure comparator 16 judges that force value on the described safety strap setting fastening does not reach described second pressure threshold, produce first signal, and described first signal is sent to A/D converter 171 by lead, otherwise, produce secondary signal, and the secondary signal biography delivered to described A/D converter 171 by lead.A/D converter 171, described first signal or the secondary signal that are used for receiving convert cooresponding binary digital signal to, and described binary digital signal is sent to sender unit 172 by lead.Sender unit 172, the described binary digital signal that is used for receiving are packaged into the Frame of the frame format that meets the requirement of IEEE802.3 LAN protocol, and by twisted-pair feeder described Frame are sent to cooresponding regional processing unit 2.
Below the safety strap of the embodiment of the invention being worn is that the review process of inspection system is described:
Be illustrated in figure 3 as, wearing for the safety strap of the embodiment of the invention is the inspection method diagram of circuit, specifically may further comprise the steps:
Step S301,11 pairs of seats of pressure sensor carry out pressure detection, obtain the force value that puts on the seat, and force value is sent to the first pressure comparator 12.When be equipped with safety strap wear be the aircraft or vehicle launch of inspection system after, it is that inspection system starts thereupon automatically that safety strap is worn, be installed on that seat pressure sensor 11 begins corresponding seat is carried out pressure detection in the cushion at each seat, obtaining cooresponding force value, and force value is sent to the first pressure comparator 12.
Step S302, the first pressure comparator 12 judges whether the force value that receives reaches predefined first pressure threshold.The first pressure comparator 12 compares the force value and first pressure threshold that receives, if the force value that receives reaches first pressure threshold then execution in step S303, otherwise, finish this pressure detection.Wherein, first pressure threshold can be decided according to the human weight scope.
Step S303,13 pairs of seats of infrared temperature sensor carry out temperature detection, obtain the temperature value on the seat, and temperature value is sent to temperature comparator 14.Because the people is different with the ultrared temperature that general object radiation goes out, and utilizes the temperature detection of infrared temperature sensor just can distinguish people and object, thereby determines whether to reach the pressure of predefined first pressure threshold from the passenger on the seat.When force value reaches predefined first pressure threshold, the first pressure comparator 12 sends an electric signal to infrared temperature sensor 13 and triggers its startup, infrared temperature sensor 13 begins the seat is carried out temperature detection, obtain the temperature value on the seat, and temperature value is sent to temperature comparator 14.
Step S304, temperature comparator 14 judges whether the temperature value that receives reaches predefined temperature threshold.Temperature comparator 14 compares temperature value and the temperature threshold that receives, if the temperature value that receives reaches temperature threshold, and execution in step S305 then, otherwise, finish this temperature detection.In the present embodiment, detect seat pressure earlier, have only and when the pressure that reaches first pressure threshold acts on the seat, just carry out temperature detection, so, when walking about, passenger or staff enter the temperature detection scope at certain seat and reality when not taking a seat, do not trigger temperature detection, thereby avoided useless temperature detection.
It is that pressure on the safety strap setting fastening at 15 pairs of seats of sensor detects that step S305, safety strap wear, and obtains the force value on the safety strap setting fastening, and force value is sent to the second pressure comparator 16.When temperature comparator 14 judges that the temperature value that receives reaches temperature threshold, wearing to safety strap is that sensor 15 sends an electric signal, trigger its startup, it is that pressure on the safety strap setting fastening at 15 pairs of seats of sensor detects that safety strap is worn, obtain the force value on the safety strap setting fastening, and force value is sent to the second pressure comparator 16.It is sensor 15 that the safety strap setting fastening of the embodiment of the invention is provided with the safety strap pendant, and it is that sensor 15 is pressure sensor that this safety strap is worn, and is used for detecting the pin thread ring of safety strap setting fastening and the pressure between the box seat.
Step S306, the second pressure comparator 16 judges whether the force value that receives reaches predefined second pressure threshold.The second pressure comparator 16 compares the force value and second pressure threshold that receives, if the force value that receives does not reach second pressure threshold then carries out S307, otherwise, execution in step S308.
Step S307, the signal generator 170 of sound and light alarm module 17 produces first signal, and first signal is sent to the A/D converter 171 of sound and light alarm module 17.The second pressure comparator 16 is judged when the force value that receives does not reach second pressure threshold, produce a high level, the signal generator 170 that triggers sound and light alarm module 17 produces first signal, and first signal is sent to the A/D converter 171 of light alarm module 17, execution in step S309 then.
Step S308, the signal generator 170 of sound and light alarm module 17 produces secondary signal, and secondary signal is sent to the A/D converter 171 of sound and light alarm module 17.The second pressure comparator 16 is judged when the force value that receives reaches second pressure threshold, produce a low level, the signal generator 170 that triggers sound and light alarm module 17 produces secondary signals, and secondary signal is sent to the A/D converter 171 of light alarm module 17, execution in step S309 then.
Step S309, first signal or secondary signal that the A/D converter 171 of light alarm module 17 will receive convert cooresponding binary digital signal to, and cooresponding binary digital signal is sent to sender unit 172.Wherein, A/D converter can adopt the pulse code modulation (pcm) mode.
Step S310, the sender unit 172 of sound and light alarm module 17 is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires with the binary digital signal that receives, and by twisted-pair feeder described Frame is sent to cooresponding regional processing unit 2 then.
Step S311, regional processing unit 2 reports to total processing unit 3 with the Frame that receives by twisted-pair feeder.Wherein, regional processing unit 2 is a concentrator, compares with directly all unit, seat 1 being connected with total processing unit 3 like this, can effectively reduce the length and the complexity of system wiring.
Step S312, total processing unit 3 is analyzed the Frame that All Ranges processing unit 2 reports, obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit 4 after D/A (D/A) conversion.Wherein, the analyzing and processing process of total processing unit realizes by the software of writing specially.
Step S313, display unit 4 show that the safety strap pendant that total processing unit 3 obtains is information and seat occupancy information.Operating personal on aircraft or the automobile just can know that a passenger does not fasten the safety belt like this, thereby can remind the passenger targetedly, reduces greatly and checks that it is the work capacity of situation that safety strap is worn.
It is that inspection system is crossed the seat pressure to the unit, seat that the safety strap of the embodiment of the invention is worn, the comprehensive detection of the pressure on temperature and the safety strap setting fastening is judged whether the passenger wears and is fastened the safety belt, thereby obtaining the safety strap pendant is situation and Seats Occupied Information, output at last shows that it is situation and Seats Occupied Information that safety strap is worn, therefore situation and Seats Occupied Information that automatic inspection or statistics passenger wear and fasten the safety belt have been realized, alleviated aircraft or vehicle related work personnel's work capacity, having improved its inspection or having added up the safety strap pendant is the efficient of situation and Seats Occupied Information, has improved the reliability of checking or adding up.Further, it is that to remove that safety strap wears be the sensor and the second pressure comparator for the seat unit further of inspection system that the safety strap of the embodiment of the invention is worn, and directly temperature comparator is connected with acousto-optic warning unit, detect temperature value by temperature comparator according to infrared temperature sensor and whether reach cooresponding generation first signal of temperature threshold or secondary signal, thereby constitute a kind of system that is exclusively used in automatic statistics Seats Occupied Information, can be widely used in places such as stadiums, grand theater, cinema.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering staff in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. a safety strap pendant is an inspection method, it is characterized in that, may further comprise the steps:
Pressure sensor carries out pressure detection to the seat, obtains the force value that puts on the described seat, and described force value is sent to the first pressure comparator;
The described first pressure comparator judges whether the force value that receives reaches predefined first pressure threshold;
If described force value reaches described first pressure threshold, then trigger infrared temperature sensor described seat is carried out temperature detection, obtain the temperature value on the described seat, and described temperature value is sent to temperature comparator, otherwise, finish this detection;
Described temperature comparator judges whether the temperature value that receives reaches predefined temperature threshold;
If described temperature value reaches described temperature threshold, then triggering the safety strap pendant is that sensor detects the pressure on the safety strap setting fastening at described seat, obtains the force value on the safety strap setting fastening, and described force value is sent to the second pressure comparator, otherwise, finish this detection;
The described second pressure comparator judges whether the force value that receives reaches predefined second pressure threshold;
If the force value on the described safety strap setting fastening does not reach described second pressure threshold, the signal generator that then triggers the sound and light alarm module produces first signal, and described first signal is sent to the A/D converter of described sound and light alarm module, otherwise, the signal generator that triggers described sound and light alarm module produces secondary signal, and secondary signal is sent to the A/D converter of described smooth alarm module;
Described first signal or secondary signal that described A/D converter will receive convert cooresponding binary digital signal to, and described binary digital signal is sent to sender unit;
Described sender unit is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires with the binary digital signal that receives, and by twisted-pair feeder described Frame is sent to cooresponding regional processing unit then;
Described regional processing unit reports to total processing unit with the Frame that receives by twisted-pair feeder;
Described total processing unit is analyzed the Frame that described regional processing unit reports, and obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit after the D/A conversion;
Described display unit shows that the safety strap pendant that described total processing unit obtains is information and seat occupancy information.
2. it is inspection method that safety strap according to claim 1 is worn, and it is characterized in that, when a plurality of described seat, all wearing according to above-mentioned safety strap in each seat is that inspection method detects.
3. a safety strap pendant is an inspection system, it is characterized in that, comprising:
The unit, seat, whether be used to detect the passenger wears and fastens the safety belt, if wearing, described passenger do not fasten the safety belt, then produce first signal, and described first signal reported to regional processing unit with the form of the Frame that meets the IEEE802.3 LAN protocol and require, otherwise the generation secondary signal, and described secondary signal reported to described regional processing unit with the form of the Frame that meets the IEEE802.3 LAN protocol and require;
The zone processing unit, the Frame that is used for receiving reports to total processing unit by twisted-pair feeder;
Total processing unit is used to analyze the Frame that described regional processing unit reports, and obtaining that safety strap wears is information and seat occupancy information, and described safety strap is worn is that information and seat occupancy information via are separated to be in harmonious proportion and transferred to display unit after the D/A conversion;
Display unit is used to show that the safety strap pendant that described total processing unit obtains is information and seat occupancy information, wherein,
Unit, described seat further comprises:
Pressure sensor is used for the seat is carried out pressure detection, obtains the force value that puts on the described seat, and force value is sent to the first pressure comparator by lead;
The first pressure comparator is used to judge whether the force value that receives reaches predefined first pressure threshold;
Infrared temperature sensor, be used for when the described first pressure comparator judges that described force value reaches described first pressure threshold, described seat is carried out temperature detection, obtain the temperature value on the described seat, and described temperature value is sent to temperature comparator by lead, otherwise, finish this detection;
Temperature comparator is used to judge whether the temperature value that receives reaches predefined temperature threshold;
It is sensor that safety strap is worn, be used for when described temperature comparator judges that described temperature value reaches described temperature threshold, pressure on the safety strap setting fastening at described seat is detected, obtain the force value on the safety strap setting fastening, and described force value is sent to the second pressure comparator by lead, otherwise, finish this detection;
The second pressure comparator is used to judge whether the force value that receives reaches predefined second pressure threshold;
The sound and light alarm module, be used for producing first signal or secondary signal according to the comparative result of the described second pressure comparator, convert described first signal or secondary signal to binary digital signal, and described binary digital signal is packaged into the Frame that meets the frame format that the IEEE802.3 LAN protocol requires is sent to regional processing unit by twisted-pair feeder.
4. it is inspection system that safety strap according to claim 3 is worn, and it is characterized in that described sound and light alarm module further comprises:
Signal generator, be used for when the described second pressure comparator judges that force value on the described safety strap setting fastening does not reach described second pressure threshold, produce first signal, and described first signal is sent to A/D converter by lead, otherwise, produce secondary signal, and described secondary signal biography is delivered to described A/D converter by lead;
A/D converter, described first signal or the secondary signal that are used for receiving convert cooresponding binary digital signal to, and described binary digital signal is sent to sender unit by lead;
Sender unit, the described binary digital signal that is used for receiving are packaged into the Frame of the frame format that meets the requirement of IEEE802.3 LAN protocol, and by twisted-pair feeder described Frame are sent to cooresponding regional processing unit.
5. it is inspection system that safety strap according to claim 3 is worn, it is characterized in that, it is that inspection system comprises a plurality of unit, described seat and a plurality of described regional processing unit that described safety strap is worn, and several unit, described seat are connected with a described regional processing unit by twisted-pair feeder.
6. it is inspection system that safety strap according to claim 5 is worn, and it is characterized in that described a plurality of regional processing units all are connected with described total processing unit by twisted-pair feeder.
7. it is inspection system that safety strap according to claim 3 is worn, and it is characterized in that described total processing unit is connected with described display unit by data line.
8. it is inspection system that safety strap according to claim 3 is worn, and it is characterized in that described regional processing unit is specially concentrator, and described total processing unit is specially control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101464474A CN101402348B (en) | 2008-08-29 | 2008-08-29 | Checking method and system for fastening safety belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101464474A CN101402348B (en) | 2008-08-29 | 2008-08-29 | Checking method and system for fastening safety belt |
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| Publication Number | Publication Date |
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| CN101402348A CN101402348A (en) | 2009-04-08 |
| CN101402348B true CN101402348B (en) | 2010-08-04 |
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| CN2008101464474A Expired - Fee Related CN101402348B (en) | 2008-08-29 | 2008-08-29 | Checking method and system for fastening safety belt |
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| CN109613001B (en) * | 2018-11-07 | 2021-02-19 | 常州信息职业技术学院 | Signal receiving and processing device based on visual transmission |
| CN110758314A (en) * | 2019-06-18 | 2020-02-07 | 广州八通电子实业有限公司 | System and method for detecting whether safety belt is worn |
| CN113111145A (en) * | 2021-04-15 | 2021-07-13 | 杭州图软科技有限公司 | Intelligent public transportation system and implementation method |
| CN115214529B (en) * | 2022-01-27 | 2023-11-10 | 广州汽车集团股份有限公司 | Detection method, detection device, vehicle and computer readable medium |
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2008
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| CN101402348A (en) | 2009-04-08 |
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