CN101364103A - Transport monitor system for dangerous chemicals and implementing method thereof - Google Patents
Transport monitor system for dangerous chemicals and implementing method thereof Download PDFInfo
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- CN101364103A CN101364103A CNA2007100755942A CN200710075594A CN101364103A CN 101364103 A CN101364103 A CN 101364103A CN A2007100755942 A CNA2007100755942 A CN A2007100755942A CN 200710075594 A CN200710075594 A CN 200710075594A CN 101364103 A CN101364103 A CN 101364103A
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Abstract
The invention relates to a dangerous chemical monitoring system and the implementation method thereof. A monitoring terminal of the system is used for collecting the state data of a dangerous chemical leakage sensor, a liquid level sensor, a pressure sensor, a humidity/temperature sensor, an acceleration sensor and a space sensor which are arranged in a valve cavity; and then uploads the collected data to a device terminal; at the same time, the device terminal uploads the data to a monitoring center via the global positioning system (GPS) and the GPRS wireless data transmission system, thereby realizing the local and remote monitoring in a real-time manner during the transportation of dangerous chemicals. The communication protocol-based devices of the dangerous chemical monitoring system can better solve the problem of the safe and reliable transmission of the complex multi-type data between the monitoring terminal and the device terminal.
Description
Technical field
The present invention relates to supervisory system, more particularly, relate to a kind of danger product transport monitor system and its implementation of being used to.
Background technology
The article that hazardous materials transportation casing or vehicle are carried are many based on hazardous chemical inflammable, explosive, poisonous, harmful, deep-etching.In the way of transportation, the driver is positioned at automotive front end, and the valve member that may leak is in the compartment afterbody, and the driver is difficult to find the situation of compartment afterbody leakage generation, can not in time take measures in case take place to leak, and consequence will be very serious.In addition, after the ultra-large type accidents such as the product haulage vehicle of often causing danger generation leakage, the driver escapes, owing to untimely cause heavy casualties and the environmental pollution accident of taking measures.
If can find the generation of leaking in real time; and in real time accident report Surveillance center is revealed in leakage situation, time, place etc.; Surveillance center in time takes appropriate counter-measure; can prevent the generation of hazardous material incident; reduce harm and influence that the generation of dangerous material leakage accident is caused; farthest protect environment and personal safety as well as the property safety, the present invention goes up and produces with regard to being based on this basis.
Summary of the invention
The technical problem to be solved in the present invention is that the defective at dangerization product transportation shortage real-time monitoring system in the prior art provides a kind of danger product supervisory system and its implementation of being used to, and can monitor the situation of conveying objects in real time.
A monitoring terminal system is installed on transportation casing or vehicle, this monitoring terminal is used for gathering the status data of sensors such as the dangerous material leak sensor that is installed at the valve member cavity, liquid level, pressure, humiture, acceleration, space, again image data is uploaded to vehicle-mounted/Shipborne terminal, simultaneously by the GPS GPS, with the GPRS wireless system for transmitting data, realize real-time local and remote monitoring to the hazardous materials transportation process.Communication protocol related among the present invention is with regard to the good problem that has solved complicated eurypalynous data security reliable transmission between monitoring terminal and vehicle-mounted or the Shipborne terminal.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of supervisory system that is used to danger product transportations, comprise the monitoring terminal that is used for this system and the communication protocol device between the device end, described communication protocol device comprises:
The data message module, be used for sensor to status data be uploaded to described device end from described monitoring terminal with the preset data form, described status data comprises the detected status data of sensor that is connected with described monitoring terminal under normal condition and the alarm condition and the status data of sensor device itself;
Parameter is provided with command module, is used for that the parameter preset that described device end issues is provided with order and is sent to described monitoring terminal with the preset data form, and described monitoring terminal is provided with order according to described parameter preset and carries out the parameter setting;
The data query command module is used for preset data querying command that described device end is issued and is sent to described monitoring terminal with the preset data form, and described monitoring terminal carries out the correlation parameter data query according to described preset data querying command;
The control command module, the default control order that is used for being issued by described terminal device under special circumstances is sent to described monitoring terminal to realize the control of backstage to field apparatus with the preset data form.
Among the present invention, described preset data form adopts pre-set code to realize, comprises bebinning character, ending character and message body, and described message body comprises command word, data length, optional data volume and CRC check word, wherein,
The command word of described message body, the command word that is issued by described device end is defined as capitalization, orientates lowercase as by the command word of described monitoring terminal response;
The data length of described message body is meant the total length of all data in the described message body, and the length of described data volume determines that according to described command word described data volume can be default in described message body;
The CRC check radical of described message body carries out the CRC12 algorithm computation according to the character in the described message body and draws, and described CRC character adopts pre-set code output.
Among the present invention, the data volume of the detected status data of sensor comprises in the described data message module: the time on date that type of alarm, sensor state value and data report; Wherein, described sensor state value comprises casing switch detector detected state value, acceleration transducer detected state value, obliquity sensor detected state value, temperature sensor detected state value, humidity sensor detected state value, gas leak sensor detected state value, pressure transducer detected state value and liquid level sensor detected state value;
The data volume of the status data of equipment itself comprises in the described data message module: the battery electric quantity of type of alarm, system battery, sensor performance state value and time on date, wherein, described sensor performance state value comprises casing switch detector performance state value, acceleration transducer performance state value, obliquity sensor performance state value, temperature sensor performance state value, humidity sensor performance state value, gas leak sensor performance state value, pressure transducer performance state value and liquid level sensor performance state value.
Among the present invention, described parameter is provided with parameter preset in the command module and order is set comprises: container number is provided with order, Time of Day is provided with order, the door switch parameter is provided with order, the sensor alarming threshold value is provided with order, order is set data upload frequencies and key is provided with order, wherein, described sensor alarming threshold value is provided with order and comprises the setting of acceleration transducer threshold values, the obliquity sensor threshold values is provided with, the temperature sensor threshold values is provided with, the humidity sensor threshold values is provided with, gas leak sensor threshold values is provided with, the pressure transducer threshold values is provided with and the liquid level sensor threshold values is provided with.
Among the present invention, preset data querying command in the described data query command module comprises: the container number querying command, the Time of Day querying command, door switch correlation parameter querying command, sensor states value querying command, the total status inquiry command of sensor alarming threshold value querying command and haulage vehicle, wherein, described sensor states value querying command comprises the acceleration transducer status poll, the obliquity sensor status poll, the temperature sensor status poll, the humidity sensor status poll, the status poll of gas leak sensor, pressure transducer status poll and liquid level sensor status poll; Described sensor alarming threshold value querying command comprises the inquiry of acceleration transducer threshold values, the inquiry of obliquity sensor threshold values, the inquiry of temperature sensor threshold values, the inquiry of humidity sensor threshold values, the inquiry of gas leak sensor threshold values, the inquiry of pressure transducer threshold values and the inquiry of liquid level sensor threshold values.
Among the present invention, the command word of the default control order in the described control command module is OVER, and data volume is empty.
The present invention also discloses a kind of implementation method that is used to the supervisory system of danger product transportation simultaneously, carries out following steps between monitoring terminal and device end:
The status data that described monitoring terminal is initiatively detected normal condition and alarm condition lower sensor or the status data of equipment itself are uploaded to described device end with the preset data form;
Described device end is provided with order with parameter preset and is issued to described monitoring terminal with the preset data form, and returns response data by described monitoring terminal;
Described device end is issued to described monitoring terminal with the preset data querying command with the preset data form, and returns response data by described monitoring terminal;
Described device end is issued to described monitoring terminal with the default control order with the preset data form, and returns response data by described monitoring terminal.
Among the present invention, also comprise the steps:
If working sensor is undesired, described monitoring terminal is uploaded to described device end according to predeterminated frequency with the equipment performance state value;
Under normal condition, described monitoring terminal is uploaded data according to default normal condition frequency;
Under alarm condition, described monitoring terminal is uploaded data according to default alert frequency;
At transmitting terminal the data that need send are encrypted, the data that receive are decrypted at receiving end.
Among the present invention, also comprise the step that defines described preset data form, this step comprises:
The employing pre-set code realizes, comprises bebinning character, ending character and message body, and described message body comprises command word, data length, optional data volume and CRC check word, wherein,
The command word of described message body is fixed, and the command word that is issued by described device end is defined as capitalization, orientates lowercase as by the command word of described monitoring terminal response;
The data length of described message body is meant the total length of all data in the described message body, and the length of described data volume determines that according to described command word described data volume can be default in described message body;
The CRC check radical of described message body carries out the CRC12 algorithm computation according to the character in the described message body, and described CRC character adopts pre-set code output.
The invention has the beneficial effects as follows; by on dangerization product transportation casing or vehicle, a supervisory system of the present invention being installed; the monitoring terminal of this system is used for gathering the status data that is installed at sensors such as valve member cavity dangerous material leak sensor, liquid level, pressure, humiture, acceleration, space; again with image data to uploading to device end (vehicle-mounted or Shipborne terminal); by the GPS global positioning system GPRS wireless system for transmitting data of unifying, realize real-time local and remote monitoring simultaneously to the hazardous materials transportation process.Related communication protocol device can solve the problem of complicated eurypalynous data security reliable transmission between monitoring terminal and the device end among the present invention.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structured flowchart that is used to the supervisory system of danger product transportation of the present invention;
Fig. 2 is the operational flowchart that is used for the supervisory system monitoring terminal of danger product transportation of the present invention.
Embodiment
As shown in Figure 1, on transport agent (jar case or groove tank car), install state sensor and casing switch detectors such as gas leak sensor, pressure transducer, liquid level sensor, acceleration transducer, obliquity sensor, temperature sensor, humidity sensor additional, monitoring terminal is gathered the state value of the sensor by sensor interface module, and do corresponding data processing, result and corresponding sensor state value utilize the terminal communication module to be uploaded to device end (as vehicle-mounted or Shipborne terminal) by the communication protocol device the most at last.Device end utilizes the terminal communication module to receive packet; according to communication protocol resolution data bag; make local display alarm or upload to the background monitoring center, to realize of the local and remote monitoring of dangerization product in transportation by the GPS global positioning system GPRS wireless system for transmitting data of unifying.
In addition, device end (as vehicle-mounted or Shipborne terminal) can be according to the requirement at background monitoring center, initiatively initiate related command (order, data query order, control command etc. are set as parameter), operate to realize remote monitoring such as sensor states inquiry, parameter setting, parameter query, device control to monitoring terminal to monitoring terminal.
Communication protocol device of the present invention is used for the data transmission between monitoring terminal and the device end (as vehicle-mounted or Shipborne terminal).Various operating mode according to the hazardous materials transportation supervisory system, communication mode between monitoring terminal and the device end, can adopt multiple different industrial bus modes such as TTL, RS232, RS485, I2C-bus, USB-bus, CAN-bus, TCP/IP to carry out data transmission, also can adopt the wireless mode of different frequency ranges such as 125K, 433MHZ, 915MHZ, 2.4GHZ to carry out data transmission, thereby the assurance system can carry out safe and reliable data transmission like clockwork under bad working environments, also makes things convenient for the communication facilities both sides to carry out final data simultaneously and resolves.
The data layout of communication protocol device (described data layout all is the data layout before encryption): all data all adopt pre-set code (as ASCII character) to realize; Whole communication data packet is a bebinning character with preset characters (as character), serves as the ending character with preset characters (as carriage return character (‘ n ')), and center section is a message body.Message body comprises command word, data length, data volume (option), CRC check word; The command word of all down orders (device end is issued to the order of sense terminals) of device end (as vehicle-mounted/Shipborne terminal) is capitalization, and the order of monitoring terminal response (going up line command) word is lowercase; Data length is the total length of all data in the message body; The length of data volume is different according to its length of different command words, can not have data volume in the data packet format; The CRC check word adopts the CRC12 algorithm of the alphabet of all message bodies that do not comprise CRC character itself to calculate, and the CRC character adopts pre-set code output (as adopting the ASCII output of 16 systems).As shown in the table:
The communication protocol device mainly comprises: data message module, parameter are provided with command module, data query command module and control command module.
(1) data message module
The data message module be used for sensor to status data be uploaded to described device end from described monitoring terminal with the preset data form, described status data comprises the detected status data of sensor (as equipment such as system battery, sensor itself) that is connected with described monitoring terminal under normal condition and the alarm condition and the status data of equipment itself.Data upload frequencies is uploaded according to the frequency of setting, and under the normal condition that does not take place to report to the police, monitoring terminal reports frequency to upload data according to the normal condition of setting; When having alarm condition to take place, then report frequency to upload data according to warning.
The concrete form of the detected status data of sensor is followed the data layout in the above table.Wherein the particular content of data volume comprises the time on date that type of alarm, sensor state value, data report.As: @tcou, 120, w:47, v:03|00000007, a:-126|049, b:041|044, t:026, h:061, g:001|10520, p:1060, l:280,20070531,103208,58.
Wherein, sensor status data upload command word: that use in this communication protocol device is tcou.
Type of alarm: with behind W (abbreviation of the warm) character with binary each position 0 or 1 of a byte data (8bit) represents 8 state sensors respectively is normal or warning two states.
Sensor state value: the state value that mainly comprises casing switch detector detected state value, acceleration transducer detected state value, obliquity sensor detected state value, temperature sensor detected state value, humidity sensor detected state value, gas leak sensor detected state value, pressure transducer detected state value and 8 sensors of liquid level sensor detected state value.Each represents the detected state value of each sensor with concrete numerical value with a different alphabetical back respectively.Can use a respectively in the communication protocol device as described herein, b, t, h, g, p, l distinguish acceleration, inclination angle, temperature, humidity, gas, pressure, liquid level.
Casing switch detector detected state value: comprising number of switches and on off state, represent to have three door switch as v:03|00000007, all is open mode;
Acceleration transducer detected state value: comprise the accekeration of X and Y both direction, represent that as a:-126|049 the directions X acceleration figure is-126g, Y directional acceleration value is 49g.
Obliquity sensor detected state value: comprise the inclination angle value of X and Y both direction, represent that as b:041|044 directions X inclination angle value is 41 °, Y direction inclination angle value is 44 °.
The temperature sensor detected value: expression be the environment temperature of cavity, represent that as t:026 the environment temperature of haulage vehicle cavity is 26 ℃.
The humidity sensor detected value: expression be the ambient humidity of cavity, represent that as h:061 the ambient humidity of haulage vehicle cavity is 61%.
Gas leak sensor detected state value: comprise leakage class and gas leakage concentration value, represent 1 grade of leakage of gas as 001:10520, leakage concentration is 10520ppm.
Pressure transducer detected state value: the pressure of expression carrying case in-vivo medium, represent that as p:1060 pressure medium is 1060KPa in the casing.
Liquid level sensor detected state value: the liquid level of expression carrying case in-vivo medium, represent that as l:280 the medium liquid level is 280cm in the casing.
If the above sensor does not install additional in system applies, in the data that report so, the sensor states value of not using all reports 0.
The concrete form of equipment performance such as system battery, sensor status data is also followed the data layout in the above table.Wherein, the content of data volume comprises type of alarm, battery electric quantity, sensor performance state value, time on date.As:
＠bsst，80，w:02，b:0.6，v:03|00000007，a:0，b:1，t:0，h:0，g:0，p:0，l:0，20070531，103208，58。Just report under the situation that this partial data has only some or several sensors breaks down, otherwise do not report.Report frequency to upload according to default alert frequency.
Wherein, sensor status data upload command word: that use in the communication protocol device of the present invention is bsst.
Type of alarm: with behind W (warm abbreviation) character with binary each position 0 or 1 of a byte data (8bit) represents 8 state sensors respectively is normal or warning two states.
Battery electric quantity: the dump energy of current system supplying cell, as: b:0.6 represents that the dump energy of current system supplying cell is 0.6Ah.
Sensor device performance state value: system carries out each sensor performance self check, if sensor has fault with regard to the uploaded state value, comprise casing switch detector, acceleration, inclination angle, temperature, humidity, gas leakage, pressure, 8 sensor performance state values of liquid level.Each represents the detected state value of each sensor with concrete numerical value with a different alphabetical back respectively.As use a as described in inventing in the communication protocol device respectively, and b, t, h, g, p, l distinguish acceleration, inclination angle, temperature, humidity, gas, pressure, liquid level respectively.
Casing switch detector performance state value: comprise number of switches and duty, represent that as v:03|00000000 there are three door switch in system, all working properly.
Other each sensor performance state value is represented that with 0 or 1 each working sensor is normal respectively or is broken down; as: a:0; b:1; t:0; h:0, g:0, p:0; l:0 represents that acceleration (a), temperature (t), humidity (h), gas (g), pressure (p), liquid level (l) several sensors are working properly, and obliquity sensor (b) breaks down.
If the above sensor does not install additional in system applies, in the performance data that reports so, the sensor performance state value of not using all reports 0.
(2) parameter is provided with command module
Parameter is provided with command module and is used for that the parameter preset that described device end issues is provided with order and is sent to described monitoring terminal with the preset data form, and described monitoring terminal is provided with order according to described parameter preset and carries out the parameter setting.
The various parameters that device end (as vehicle-mounted or Shipborne terminal) is issued to monitoring terminal are provided with order and comprise: container number is provided with order, Time of Day and order, door switch parameter are set order, sensor alarming threshold value are set are provided with that order, data upload frequencies are provided with order, key is provided with order.Monitoring terminal receives that each parameter is provided with order and all can returns the corresponding response data afterwards to device end, and the command word that response data can be provided with the parameter that receives the entire packet of order changes lowercase into, and other is constant.Wherein,
Container number is provided with: be the numbering of the container installed of monitoring terminal, and utility command word SNUM in the communication protocol device of the present invention, the data volume content is a container character.As: @SNUMNUMB1234567 32 container number being set is NUMB1234567.
Time of Day is provided with: be the system time of revising monitoring terminal, the command word TIME and the DATE that use in the communication protocol device of the present invention are provided with time and date respectively, and the data volume content is the time and date that needs setting.Represent that as: @TIME 130,925 00 ， @DATE 20,070,713 02 it is 13:09:25 that the time is set, the date is 2007-7-13.
The door switch parameter is provided with: comprise that door switch quantity is provided with, numbering is provided with, the alarming threshold value setting.Wherein, the setting of door switch quantity is to be used for the door switch quantity that whole monitoring system installs additional is set, and the command word of using in this agreement is VNUM, and data volume is the door switch quantitative value, is set to 3 as: @VNUM 03,02 expression door switch quantity.
The door switch numbering is provided with: be the numbering that is used for being provided with each the door switch detector that installs additional in the monitoring system, the command word of use is CHGN, and data volume is made up of old numbering, new numbering.Change door switch 1 numbering into 2 by 1 as: @CHGN 1,2,32 expressions.
The door switch alarming threshold value is provided with: be the alarming threshold value that is used for being provided with door switch, the utility command word is SMID, and data volume is made up of door switch numbering, alarming threshold value.Alarming threshold value as: @SMID 1,2000,32 expression door switch 1 is set to 2000.
The setting of sensor alarming threshold value comprises the setting of acceleration, inclination angle, temperature, humidity, gas leakage, pressure and liquid level several sensors alarming threshold value.Command word is SMOD, and data volume represents that by sensor character, alarming threshold value form.Use a respectively, b, t, h, g, p, l represent acceleration, inclination angle, temperature, humidity, gas, pressure, liquid level respectively.As: @SMOD a:004, it is 4 that 32 expressions are provided with the acceleration alarming threshold value.
Data upload frequencies is provided with: comprise normal condition data upload frequencies and alarm condition data upload frequencies, the command word of use is SSFR, and data volume is made up of state representation character, upload frequencies value.Represent normal and warning two states with n and a respectively.As: @SSFR n:015, a:005, it is 15 seconds that 32 expressions are provided with the normal data upload frequencies, the warning upload frequencies is 5 seconds.
The key setting is to revise in the communication protocol device of the present invention required key in the data encryption algorithm, and command word is SPWD, and data volume is an encryption key value.Be set to A12C3456789 as: @SPWD A12C3456789 45 expression data encryption keys.
(3) data query command module
The data query command module is used for preset data querying command that described device end is issued and is sent to described monitoring terminal with the preset data form, and described monitoring terminal carries out the correlation parameter data query according to described preset data querying command.
The data query order that device end (as vehicle-mounted or Shipborne terminal) is issued to monitoring terminal comprises: container number inquiry, Time of Day inquiry, the inquiry of door switch correlation parameter, the inquiry of sensor states value, the inquiry of sensor alarming threshold value, the total status poll of haulage vehicle.Monitoring terminal all can return the corresponding response data to device end after receiving each data query order, and the command word of response data packet is the small letter of the letter of querying command, and data volume is the concrete numerical value of data query.As: send @DATE 00, response @date20070713.Represent system time vehicle-mounted or Shipborne terminal inquiry monitoring terminal, the monitoring terminal responding system time is 2007-7-13.Wherein,
Container number inquiry: be the container character that the inquiry monitoring terminal is installed, command word NUMB, data volume be sky, and the data volume of monitoring terminal response data packet is the numbering of the container installed of monitoring terminal.
The Time of Day inquiry: be the system time of inquiry monitoring terminal equipment, command word TIME and DATE, data volume are empty, and the data volume of monitoring terminal response data packet is the system time of monitoring terminal.
Door switch correlation parameter inquiry: comprise door opening and closing state inquiry, alarming threshold value inquiry.
The door opening and closing state command word is VALV, and the data volume of monitoring terminal response data packet is the state that door switch quantity and corresponding door open or close.As: send @VALV 00, response @valv, v:08|00000001,00, expression has 8 each door switch, and wherein switch 1 is opened;
Door switch alarming threshold value querying command word is RMID, and data volume is the door switch numbering, and the data volume of monitoring terminal response data packet is made up of door switch numbering, alarming threshold value.As: @RMID 01 32, response @rmid01 2000 4a, the alarming threshold value of the door switch 1 that expression inquires is 2000.
Sensor states value inquiry: be inquiry, comprise the inquiry of the state value of acceleration, inclination angle, temperature, humidity, gas leakage, pressure and liquid level several sensors at the single-sensor state value.Command word is RSOD, and data volume represents that by sensor character group becomes.Use a respectively, b, t, h, g, p, l indicate to inquire about the state value of sensors such as acceleration, inclination angle, temperature, humidity, gas, pressure, liquid level respectively.As: send @RSOD a, 32 response @rsod a:003|005,5e, the acceleration detection state value that expression inquires is directions X 3g, Y direction 5g.
The inquiry of sensor alarming threshold value is the inquiry at the single-sensor alarming threshold value, comprises the inquiry of the single-sensor alarming threshold value of acceleration, inclination angle, temperature, humidity, gas leakage, pressure and liquid level several sensors.Command word is RMOD, and data volume represents that by sensor character group becomes.Use a respectively, b, t, h, g, p, l indicate to inquire about the alarming threshold value of sensors such as acceleration, inclination angle, temperature, humidity, gas, pressure, liquid level respectively.As: send @RMOD a, 32 response @rmod a:008,5e, the acceleration alarming threshold value that expression inquires is 8g.
The inquiry of the total state value of haulage vehicle, it is the state value of all the sensors of inquiry monitoring terminal detection, command word is TCOU, data volume is empty, and monitoring terminal response data packet content is caught up with and stated parameter that the packet content of " monitoring terminal uploads to the data of device end " described in the command module is set is the same.
(4) control command module
The default control order that the control command module is used for being issued by described terminal device under special circumstances is sent to described monitoring terminal to realize the control of backstage to field apparatus with the preset data form.
The control command that device end (as: vehicle-mounted or Shipborne terminal) is issued to monitoring terminal mainly is the special abnormality situation to occur at the scene to send a control command to monitoring terminal, closes the working power of on-the-spot all devices.Command word is OVER, and data volume is empty.
In addition, for guaranteeing monitoring terminal and vehicle-mounted or Shipborne terminal reliability of data transmission and security, just transmit after all data sending terminal data are encrypted, can adopt DES, 3-DES or other cryptographic algorithm, encryption key can be revised.Data receiver is done relevant protocol analysis after taking opposite mode with data decryption again.
Fig. 2 is the operational flowchart of monitoring terminal in the supervisory system of the present invention, as shown in the figure, comprises the steps:
S1, system initialization at first, and enter self-check program.
Whether S2, the work that detects each sensor (sensors such as acceleration, inclination angle, temperature, humidity, gas leakage, pressure and liquid level) on the monitoring terminal be normal, if undesired then execution in step S3, otherwise execution in step S4.
S3, the equipment performance state values such as abnormal sensor of will working according to setpoint frequency are uploaded.
S4, sensor carry out the state value of the shipping products that collects to be uploaded to device end after related data is handled.
S5, monitoring terminal have judged whether alert data, if alert data is arranged then execution in step S6, otherwise execution in step S7.
S6, upload described state value to device end according to the alarm condition frequency of setting, and execution in step S9.
S7, upload described state value to device end according to the normal condition frequency of setting, and execution in step S9.
S8, monitoring terminal judge whether to receive the down order of device end, if having then execution in step S9, otherwise return step S1.
S9, monitoring terminal are carried out relevant operation according to described down order, return step S1 behind the end of operation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (9)
1. supervisory system that is used to danger product transportations comprises the monitoring terminal that is used for this system and the communication protocol device between the device end, it is characterized in that described communication protocol device comprises:
The data message module, be used for sensor to status data be uploaded to described device end from described monitoring terminal with the preset data form, described status data comprises the detected status data of sensor that is connected with described monitoring terminal under normal condition and the alarm condition and the status data of sensor device itself;
Parameter is provided with command module, is used for that the parameter preset that described device end issues is provided with order and is sent to described monitoring terminal with the preset data form, and described monitoring terminal is provided with order according to described parameter preset and carries out the parameter setting;
The data query command module is used for preset data querying command that described device end is issued and is sent to described monitoring terminal with the preset data form, and described monitoring terminal carries out the correlation parameter data query according to described preset data querying command;
The control command module, the default control order that is used for being issued by described terminal device under special circumstances is sent to described monitoring terminal to realize the control of backstage to field apparatus with the preset data form.
2. a kind of supervisory system that is used to the transportation of danger product according to claim 1; it is characterized in that; described preset data form adopts pre-set code to realize; comprise bebinning character, ending character and message body; described message body comprises command word, data length, optional data volume and CRC check word; wherein
The command word of described message body, the command word that is issued by described device end is defined as capitalization, orientates lowercase as by the command word of described monitoring terminal response;
The data length of described message body is meant the total length of all data in the described message body, and the length of described data volume determines that according to described command word described data volume can be default in described message body;
The CRC check radical of described message body carries out the CRC12 algorithm computation according to the character in the described message body and draws, and described CRC character adopts pre-set code output.
3. a kind of supervisory system that is used to the transportation of danger product according to claim 2 is characterized in that,
The data volume of the detected status data of sensor comprises in the described data message module: the time on date that type of alarm, sensor state value and data report; Wherein, described sensor state value comprises casing switch detector detected state value, acceleration transducer detected state value, obliquity sensor detected state value, temperature sensor detected state value, humidity sensor detected state value, gas leak sensor detected state value, pressure transducer detected state value and liquid level sensor detected state value;
The data volume of the status data of equipment itself comprises in the described data message module: the battery electric quantity of type of alarm, system battery, sensor performance state value and time on date, wherein, described sensor performance state value comprises casing switch detector performance state value, acceleration transducer performance state value, obliquity sensor performance state value, temperature sensor performance state value, humidity sensor performance state value, gas leak sensor performance state value, pressure transducer performance state value and liquid level sensor performance state value.
4. a kind of supervisory system that is used to the transportation of danger product according to claim 2; it is characterized in that; described parameter is provided with parameter preset in the command module and order is set comprises: container number is provided with order, Time of Day and order, door switch parameter are set are provided with that order, sensor alarming threshold value are provided with order, order is set data upload frequencies and key is provided with order
Wherein, described sensor alarming threshold value be provided with that order comprises that the acceleration transducer threshold values is provided with, the obliquity sensor threshold values is provided with, the temperature sensor threshold values is provided with, the humidity sensor threshold values is provided with, gas leak sensor threshold values is provided with, the setting of pressure transducer threshold values and the setting of liquid level sensor threshold values.
5. a kind of supervisory system that is used to the transportation of danger product according to claim 2; it is characterized in that; preset data querying command in the described data query command module comprises: container number querying command, Time of Day querying command, door switch correlation parameter querying command, sensor states value querying command, sensor alarming threshold value querying command and the total status inquiry command of haulage vehicle
Wherein, described sensor states value querying command comprises acceleration transducer status poll, obliquity sensor status poll, temperature sensor status poll, humidity sensor status poll, the status poll of gas leak sensor, pressure transducer status poll and liquid level sensor status poll; Described sensor alarming threshold value querying command comprises the inquiry of acceleration transducer threshold values, the inquiry of obliquity sensor threshold values, the inquiry of temperature sensor threshold values, the inquiry of humidity sensor threshold values, the inquiry of gas leak sensor threshold values, the inquiry of pressure transducer threshold values and the inquiry of liquid level sensor threshold values.
6. a kind of supervisory system that is used to the transportation of danger product according to claim 2 is characterized in that the command word of the default control order in the described control command module is OVER, and data volume is empty.
7. an implementation method that is used to the supervisory system of danger product transportation is characterized in that, carries out following steps between monitoring terminal and device end:
The status data that described monitoring terminal is initiatively detected normal condition and alarm condition lower sensor or the status data of equipment itself are uploaded to described device end with the preset data form;
Described device end is provided with order with parameter preset and is issued to described monitoring terminal with the preset data form, and returns response data by described monitoring terminal;
Described device end is issued to described monitoring terminal with the preset data querying command with the preset data form, and returns response data by described monitoring terminal;
Described device end is issued to described monitoring terminal with the default control order with the preset data form, and returns response data by described monitoring terminal.
8. a kind of implementation method that is used to the supervisory system of danger product transportation according to claim 7 is characterized in that, also comprises the steps:
If working sensor is undesired, described monitoring terminal is uploaded to described device end according to predeterminated frequency with the equipment performance state value;
Under normal condition, described monitoring terminal is uploaded data according to default normal condition frequency;
Under alarm condition, described monitoring terminal is uploaded data according to default alert frequency;
At transmitting terminal the data that need send are encrypted, the data that receive are decrypted at receiving end.
9. according to claim 7 or 8 described a kind of implementation methods that are used to the supervisory system of danger product transportation, it is characterized in that also comprise the step that defines described preset data form, this step comprises:
The employing pre-set code realizes, comprises bebinning character, ending character and message body, and described message body comprises command word, data length, optional data volume and CRC check word, wherein,
The command word of described message body is fixed, and the command word that is issued by described device end is defined as capitalization, orientates lowercase as by the command word of described monitoring terminal response;
The data length of described message body is meant the total length of all data in the described message body, and the length of described data volume determines that according to described command word described data volume can be default in described message body;
The CRC check radical of described message body carries out the CRC12 algorithm computation according to the character in the described message body, and described CRC character adopts pre-set code output.
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| CNA2007100755942A CN101364103A (en) | 2007-08-10 | 2007-08-10 | Transport monitor system for dangerous chemicals and implementing method thereof |
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