CN101201624A - Method and system for improving stability of engineering machinery communication terminal - Google Patents
Method and system for improving stability of engineering machinery communication terminal Download PDFInfo
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- CN101201624A CN101201624A CNA2007101959805A CN200710195980A CN101201624A CN 101201624 A CN101201624 A CN 101201624A CN A2007101959805 A CNA2007101959805 A CN A2007101959805A CN 200710195980 A CN200710195980 A CN 200710195980A CN 101201624 A CN101201624 A CN 101201624A
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Abstract
The invention relates to a method for improving the stability of a construction machinery communication terminal. The work condition data of the construction machinery is obtained by the communication terminal and sent to a monitoring center in the way of wireless communication. The monitoring center judges whether the work condition data is effective. If the work condition data is invalid, error information is returned to the communication terminal. When the communication terminal continuously receives the error information to a default value, reset is executed. At the same time, the invention also provides a system for improving the stability of a construction machinery communication terminal. The invention solves the disadvantages in the prior art that the communication is easy to mistake because of interfere, the communication continually resets and the normal work of the construction machinery is impacted. The invention can effectively avoid the continual reset of the communication terminal, which ensures the normal work of the construction machinery.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of method and system that improve stability of engineering machinery communication terminal.
Background technology
As everyone knows, engineering machinery generally is comparatively under the harsh conditions, to be engaged in intensive work at environment, as mine working, cut into a mountain for quarrying, build road etc.In the work, each equipment of engineering machinery all needs to bear high vibration, high temperature, reaches high electromagnetic interference (EMI), under the environment of height vibration, high temperature, high electromagnetic interference (EMI), various device, particularly faults such as data transmission exception appear in communication terminal easily, influence the operate as normal of engineering machinery.
Consult Fig. 1, existing engineering machinery communication terminal is shown, this communication terminal comprises center control device 11, placement data acquisition device 12, reaches floor data harvester 13.Placement data acquisition device 12 obtains the locator data of engineering machinery by the GPS locator meams, is sent to center control device 11.Floor data harvester 13 obtains the floor data of engineering machinery by modes such as sensor detections, is sent to center control device 11.
Step S201, placement data acquisition device 12 and floor data harvester 13 obtain the locator data and the floor data of engineering machinery respectively, are sent to center control device 11.
Step S202, center control device 11 judge whether the data that receive are unusual, and in this way, the communication terminal that resets restarts, to eliminate fault; As not being control communication terminal operate as normal.
The communication terminal of above-mentioned engineering machinery is when breaking down, reset, restart, though can fix a breakdown preferably, this process need communication terminal judges voluntarily whether these data are unusual, the data volume that this deterministic process need be handled is bigger, communication terminal carries out the computing of larger data amount under the environment of height vibration, high temperature, high electromagnetic interference (EMI), go wrong because of interference easily, cause the communication terminal frequent recovery, influence the operate as normal of engineering machinery.
Communication terminal occurs when unusual in data, and integral body resets, and the normal device of its internal work also need together reset, as, when the position data of obtaining when placement data acquisition device 12 went wrong, the floor data harvester 13 working properly adjustment that also need reset influenced work efficiency.
Summary of the invention
Technical matters to be solved by this invention provides a kind of method of stability of engineering machinery communication terminal, and communication terminal causes the communication terminal frequent recovery easily because of interference goes wrong in the prior art to solve, and influences the deficiency of the operate as normal of engineering machinery.This method can be avoided the communication terminal frequent recovery effectively, guarantees the engineering machinery operate as normal.
Another object of the present invention provides a kind of system of stability of engineering machinery communication terminal, and this system can avoid the communication terminal frequent recovery effectively, guarantees the engineering machinery operate as normal.
A kind of method that improves stability of engineering machinery communication terminal of the present invention, described communication terminal obtains the operating state data of described engineering machinery, sends to Surveillance center with wireless communication mode; Described Surveillance center judges whether described operating state data is effective, as invalid, returns error message to described communication terminal; When described communication terminal reaches default value in the error message that receives continuously, reset.
Preferably, also comprise: Surveillance center judges that described operating state data is effective as described, replys correct information to described communication terminal.
Preferably, also comprise: communication terminal does not receive the information that described Surveillance center is replied after sending the operating state data of preset quantity continuously as described, resets.
Preferably, described communication terminal carries out self resetting, or the inner radio communication device that resets.
Preferably, also comprise: described communication terminal fails to obtain the operating state data of described engineering machinery in Preset Time, resets to obtain the device of this operating state data.
Preferably, operating state data is a position data as described, described communication terminal reset position data collector.
Preferably, operating state data is a floor data as described, the described communication terminal floor data harvester that resets.
Preferably, also comprise: described Surveillance center judges that the operating state data that receives is invalid, sends reset instruction to described communication terminal, and described communication terminal resets.
Preferably, also comprise: operating state data is the position data of engineering machinery, and described Surveillance center sends the instruction of reset position data collector to described communication terminal, the described communication terminal described placement data acquisition device that resets.
Preferably, also comprise: operating state data is the floor data of engineering machinery, and described Surveillance center sends the instruction of the floor data harvester that resets to described communication terminal, the described communication terminal described floor data harvester that resets.
Preferably, also comprise: communication failure is judged by described Surveillance center, and the instruction that sends the radio communication device that resets is to described communication terminal, described communication terminal this radio communication device that resets.
Preferably, described wireless communication mode comprises that GPGS communication mode, SMS communication mode or GPGS communication and SMS communication binding pattern communicate.
A kind of system that improves stability of engineering machinery communication terminal of the present invention, comprise Surveillance center and communication terminal, described communication terminal comprises center control device, placement data acquisition device, floor data harvester, and described center control device comprises statistic unit and reset unit; Described communication terminal is used to obtain the operating state data of described engineering machinery, sends to described Surveillance center with wireless communication mode; Described Surveillance center is used to judge whether described operating state data is effective, as invalid, returns error message to described communication terminal; Described statistic unit is used for when the error message that receives continuously reaches default value, starts reset unit; Described reset unit is used to reset.
Preferably, described communication terminal also comprises radio communication device, and described center control device also comprises counting unit: described counting unit is used for after sending the operating state data of preset quantity continuously, do not receive the information that described Surveillance center is replied, start reset unit; The described reset unit radio communication device that resets.
Preferably, described center control device also comprises: described timing unit, be used in Preset Time, failing to obtain the operating state data of described engineering machinery, and start reset unit; Described reset unit resets and obtains the device of this operating state data.
Preferably, operating state data is a position data as described, the described reset unit described placement data acquisition device that resets.
Preferably, operating state data is a floor data as described, the described reset unit described floor data harvester that resets.
Compared with prior art, the present invention has the following advantages:
Communication terminal of the present invention will obtain the various operating state datas of engineering machinery, be sent to Surveillance center, and Surveillance center's analytical work status data during data exception, returns error message to communication terminal in working order.Communication terminal resets according to this error message.Whether unusual Surveillance center of the present invention be responsible for data judgement, Surveillance center is away from the engineering machinery working-yard, be not subjected to the interference of high vibration, high temperature, high electromagnetism, accuracy height to the data judgement, and when communication terminal reaches certain numerical value in the error message that receives, just reset, thereby avoid the communication terminal frequent recovery effectively, guarantee the engineering machinery operate as normal.
Description of drawings
Fig. 1 is existing engineering machinery communication terminal synoptic diagram;
Fig. 2 is the method flow diagram of existing stability of engineering machinery communication terminal;
Fig. 3 is the long distance control system synoptic diagram of engineering machinery of the present invention;
Fig. 4 the present invention improves the first embodiment process flow diagram of stability of engineering machinery communication terminal method;
Fig. 5 is the reset inner structure synoptic diagram of communication terminal of the present invention;
Fig. 6 improves the second embodiment process flow diagram of stability of engineering machinery communication terminal method for the present invention;
Fig. 7 improves the 3rd embodiment process flow diagram of stability of engineering machinery communication terminal method for the present invention;
Fig. 8 improves the 4th embodiment process flow diagram of stability of engineering machinery communication terminal method for the present invention;
Fig. 9 improves the 5th embodiment process flow diagram of stability of engineering machinery communication terminal method for the present invention;
Figure 10 improves the 6th embodiment process flow diagram of stability of engineering machinery communication terminal method for the present invention;
Figure 11 improves the first embodiment synoptic diagram of stability of engineering machinery communication terminal system for the present invention;
Figure 12 improves the second embodiment process flow diagram of stability of engineering machinery communication terminal system for the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The present invention is mainly used in the long distance control system of engineering machinery, engineering machinery remote monitering is a kind of brand-new, quick, reliable high precision modern management means, and engineering machinery remote monitering system mainly is to utilize computer technology, satellite positioning tech and wireless communication technique that running status, working position and the construction speed of engineering machinery are carried out remote monitoring.
Consult Fig. 3, the long distance control system of engineering machinery of the present invention is shown, comprise communication terminal 31 and Surveillance center 32, communication terminal 31 and Surveillance center 32 carry out data interaction by cordless communication network.
Consult Fig. 4, first embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
Step S401, communication terminal 31 obtain the operating state data of engineering machinery.Operating state data comprises the status data of position data, floor data and communication terminal 31 itself.The operating state data that placement data acquisition device and the floor data harvester of communication terminal 31 by inside obtains engineering machinery.The placement data acquisition device obtains the position data of engineering machinery by modes such as GPS location, as, the geographic coordinate data.The floor data harvester obtains the floor data of engineering machinery by sensor, as working time data, running state data etc.
Step S402, communication terminal 31 send to Surveillance center 32 with the operating state data that obtains with wireless communication mode.Communication terminal 31 adds data type frame head, data type postamble and check code on the data in working order, forms Frame, is transferred to Surveillance center 32 with wireless communication mode then.Wireless communication mode comprises GPGS communication mode, SMS communication mode or GPGS communication and SMS communication binding pattern.
Whether step S403, Surveillance center's 32 judgment task status datas be effective, as invalid, returns error message to communication terminal 31, forwards step S404 to; As effectively, reply correct information to communication terminal 31.
After Surveillance center 32 receives this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to communication terminal 31; As not, reply the sign of error in data to communication terminal 31; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to communication terminal 31.
When step S404, communication terminal 31 reach default value in the error message that receives continuously, reset.After communication terminal 31 receives error message, error message is counted, if this count value reaches when setting numerical value, communication terminal 31 resets, and restarts; If this count value does not reach setting numerical value, communication terminal 31 reads operating state data again, resends Surveillance center 32.The scope of default value is 2-20.
Whether unusual Surveillance center of the present invention 32 be responsible for data judgement, because of Surveillance center 32 away from the engineering machinery working-yard, be not subjected to the interference of high vibration, high temperature, high electromagnetism, accuracy height to the data judgement, and when communication terminal 31 reaches certain numerical value in the error message that receives, just reset, thereby avoid the communication terminal frequent recovery effectively, guarantee the engineering machinery operate as normal.
The communication terminal 31 of the present invention interior arrangement directly related with abnormal data that can only reset guarantees the normal operation of other device, to increase work efficiency in reseting procedure.
Consult Fig. 6, second embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
The placement data acquisition device 12 of step S601, communication terminal 31 inside obtains the position data of engineering machinery by modes such as GPS location, and sends this position data in the communication terminal 31 center control device 11.
Step S602, center control device 11 add data type frame head, data type postamble and check code on this position data, form Frame, be sent to the radio communication device 14 in the communication terminal 31, radio communication device 14 is transferred to Surveillance center 32 with this position data with wireless communication mode.
After step S603, Surveillance center 32 receive this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to radio communication device 14; As not, reply the sign of error in data to radio communication device 14; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to radio communication device 14.
Step S604, radio communication device 14 forward error message to center control device 11.Center control device 11 is counted, when reaching default value, and reset position data collector 12; If this count value does not reach setting numerical value, control device 11 control position data collectors 12 in center read position data once more, resend Surveillance center 32.
When the present invention is broken down in position data, a reset position data collector 12, other device operation as usual in the communication terminal 31, the work efficiency of assurance communication terminal 31.
Consult Fig. 7, the 3rd embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
The floor data harvester 13 of step S701, communication terminal 31 inside obtains the floor data of engineering machinery by instruments such as sensors, and sends this floor data in the communication terminal 31 center control device 11.
Step S702, center control device 11 add data type frame head, data type postamble and check code on floor data, form Frame, be sent to the radio communication device 14 in the communication terminal 31, radio communication device 14 is transferred to Surveillance center 32 with this floor data with wireless communication mode.
After step S703, Surveillance center 32 receive this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to radio communication device 14; As not, reply the sign of error in data to radio communication device 14; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to radio communication device 14.
Step S704, radio communication device 14 forward error message to center control device 11.Center control device 11 is counted, and when reaching default value, floor data harvester 13 resets; If this count value does not reach setting numerical value, control device 11 control work condition data collectors 13 in center read operating state data again, resend Surveillance center 32.
When the present invention is broken down at floor data, the floor data harvester 13 that only resets, other device operation as usual in the communication terminal 31, the work efficiency of assurance communication terminal 31.
Consult Fig. 8, the 4th embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
Step S801, communication terminal 31 obtain the operating state data of engineering machinery.
The operating state data counting back that 11 pairs of centralized control units in step S802, the communication terminal 31 obtain sends to Surveillance center 32 with the operating state data that obtains with wireless communication mode by radio communication device 14.
After step S803, Surveillance center 32 receive this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to radio communication device 14; As not, reply the sign of error in data to radio communication device 14; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to radio communication device 14.
Step S804, radio communication device 14 will receive return information and be forwarded to center control device 11.Center control device 11 judges whether by the pre-conditioned return information that receives, in this way, and this return information of normal process; As not being that radio communication device 14 resets.
Pre-conditioned can be the operating state data that sends predetermined number after, do not receive return information.Predetermined number is 2-20.
After communication terminal 31 of the present invention sends the operating state data of preset data amount, as the return information of the Surveillance center that fails in time to receive, judge that inner radio communication device 14 breaks down, the radio communication device 14 that resets is normal with data interaction between assurance and the Surveillance center 32.
The present invention can also reset when communication terminal 31 fails to obtain the operating state data of engineering machinery in Preset Time, to guarantee normally to obtain in time the engineering machinery status data.
Consult Fig. 9, the 5th embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
The placement data acquisition device 12 of step S901, communication terminal 31 inside obtains the position data of engineering machinery, and sends this position data in the communication terminal 31 center control device 11.
Step S902, center control device 11 judge whether to receive this position data in Preset Time, if forward step S903 to; If not, reset position data collector 12.
The scope of Preset Time can be 2-60 second.
Add data type frame head, data type postamble and check code on step S903, the center control device position data, form Frame, be sent to the radio communication device 14 in the communication terminal, radio communication device is transferred to Surveillance center 32 with this position data with wireless communication mode.
After step S904, Surveillance center 32 receive this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to radio communication device 14; As not, reply the sign of error in data to radio communication device 14; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to radio communication device 14.
Step S905, radio communication device 14 forward return information to.Center control device 11 judges whether to receive return information by preset rules, in this way, and this return information of normal process; As not being that radio communication device 14 resets.
The error message that step S906, center control device 11 statistics receive continuously, when reaching default value, reset position data collector 12; If this count value does not reach setting numerical value, control device 11 control position data collectors 12 in center read position data once more, resend Surveillance center 32.
When communication terminal 31 of the present invention did not obtain position data within a certain period of time at position data collector 12, this placement data acquisition device 12 that resets guaranteed in time obtaining of position data.
Consult Figure 10, the 6th embodiment that the present invention improves the stability of engineering machinery communication terminal method is shown, concrete steps are as follows.
The floor data harvester 13 of step S1001, communication terminal 31 inside obtains the floor data of engineering machinery, and sends this floor data in the communication terminal 31 center control device 11.
Step S1002, center control device 11 judge whether to receive this floor data in Preset Time, if forward step S1003 to; If not, floor data harvester 13 resets.
The scope of Preset Time can be 2-60 second.
Add data type frame head, data type postamble and check code on step S1003, the center control device position data, form Frame, be sent to the radio communication device 14 in the communication terminal, radio communication device is transferred to Surveillance center 32 with these position 14 data with wireless communication mode.
After step S1004, Surveillance center 32 receive this Frame, the check code that utilization is included in this Frame inside carries out verification to this Frame, if verification is passed through, think that this Frame is effective, further whether the data content that is comprised in this Frame of checking is effective, in this way, reply the correct sign of data to radio communication device 14; As not, reply the sign of error in data to radio communication device 14; If the verification failure thinks that this operating state data is invalid, then reply the sign of error in data to radio communication device 14.
Step S1005, radio communication device 14 forward return information to.Center control device 11 judges whether that preset rules receives return information, in this way, and this return information of normal process; As not being that radio communication device 14 resets.
The error message that step S1006, center control device 11 statistics receive continuously, when reaching default value, floor data harvester 12 resets; If this count value does not reach setting numerical value, control device 11 control work condition data collectors 12 in center read floor data once more, resend Surveillance center 32.
When communication terminal 31 of the present invention did not obtain floor data within a certain period of time at floor data harvester 13, this floor data harvester 13 that resets guaranteed in time obtaining of floor data.
As operating state data is the position data of engineering machinery, and Surveillance center 32 can send the instruction of reset position data collector 12 to communication terminal 31, communication terminal 31 reset position data collectors 12.
As operating state data is the floor data of engineering machinery, and Surveillance center 32 can send the instruction of the floor data harvester 12 that resets to communication terminal 31, communication terminal 31 reset position working condition acquiring devices 12.
Judge communication failures as Surveillance center 32, the instruction that can send the radio communication device 14 that resets is to communication terminal 31, communication terminal 31 this radio communication device 14 that resets.
Based on the method for above-mentioned raising stability of engineering machinery communication terminal, the present invention also provides a kind of system that improves stability of engineering machinery communication terminal, and this system can avoid the communication terminal frequent recovery effectively, guarantees the engineering machinery operate as normal.
Consult Figure 11, first embodiment of system that the present invention improves stability of engineering machinery communication terminal is shown, comprise Surveillance center 31 and communication terminal 32, communication terminal 31 comprises center control device 11, placement data acquisition device 12, floor data harvester 13, reaches radio communication device 14, and center control device 11 comprises statistic unit 111 and reset unit 112.
The operating state data that placement data acquisition device 12 in the communication terminal 31 and floor data harvester 13 obtain engineering machinery is sent to center control device 11.Center control device 11 sends this operating state data to Surveillance center 32 by radio communication device 14 with wireless communication mode.
Consult Figure 12, second embodiment of system that the present invention improves stability of engineering machinery communication terminal is shown, comprise Surveillance center 31 and communication terminal 32, communication terminal 31 comprises center control device 11, placement data acquisition device 12, floor data harvester 13, reaches radio communication device 14, and center control device 11 comprises statistic unit 111, reset unit 112, counting unit 113, reaches timing unit 114.
Counting unit 113 does not receive the information that Surveillance center 32 is replied after sending the operating state data of preset quantity continuously, start reset unit 112.Reset unit 112 radio communication device 14 that resets.
More than to a kind of method and system that improve stability of engineering machinery communication terminal provided by the present invention, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (17)
1. a method that improves stability of engineering machinery communication terminal is characterized in that,
Described communication terminal obtains the operating state data of described engineering machinery, sends to Surveillance center with wireless communication mode;
Described Surveillance center judges whether described operating state data is effective, as invalid, returns error message to described communication terminal;
When described communication terminal reaches default value in the error message that receives continuously, reset.
2. the method for claim 1 is characterized in that, also comprises:
Surveillance center judges that described operating state data is effective as described, replys correct information to described communication terminal.
3. method as claimed in claim 2 is characterized in that, also comprises:
Communication terminal does not receive the information that described Surveillance center is replied after sending the operating state data of preset quantity continuously as described, resets.
4. method as claimed in claim 3 is characterized in that, described communication terminal carries out self resetting, or the inner radio communication device that resets.
5. the method for claim 1 is characterized in that, also comprises:
Described communication terminal fails to obtain the operating state data of described engineering machinery in Preset Time, reset to obtain the device of this operating state data.
6. as claim 1 or 5 described methods, it is characterized in that operating state data is a position data as described, described communication terminal reset position data collector.
7. as claim 1 or 5 described methods, it is characterized in that operating state data is a floor data as described, the described communication terminal floor data harvester that resets.
8. the method for claim 1 is characterized in that, also comprises:
Described Surveillance center judges that the operating state data that receives is invalid, sends reset instruction to described communication terminal, and described communication terminal resets.
9. method as claimed in claim 8 is characterized in that, also comprises:
Operating state data is the position data of engineering machinery, and described Surveillance center sends the instruction of reset position data collector to described communication terminal, the described communication terminal described placement data acquisition device that resets.
10. method as claimed in claim 8 is characterized in that, also comprises:
Operating state data is the floor data of engineering machinery, and described Surveillance center sends the instruction of the floor data harvester that resets to described communication terminal, the described communication terminal described floor data harvester that resets.
11. the method for claim 1 is characterized in that, also comprises:
Communication failure is judged by described Surveillance center, and the instruction that sends the radio communication device that resets is to described communication terminal, described communication terminal this radio communication device that resets.
12. the method for claim 1 is characterized in that, described wireless communication mode comprises that GPGS communication mode, SMS communication mode or GPGS communication and SMS communication binding pattern communicate.
13. system that improves stability of engineering machinery communication terminal, comprise Surveillance center and communication terminal, described communication terminal comprises center control device, placement data acquisition device, floor data harvester, it is characterized in that: described center control device comprises statistic unit and reset unit;
Described communication terminal is used to obtain the operating state data of described engineering machinery, sends to described Surveillance center with wireless communication mode;
Described Surveillance center is used to judge whether described operating state data is effective, as invalid, returns error message to described communication terminal;
Described statistic unit is used for when the error message that receives continuously reaches default value, starts reset unit;
Described reset unit is used to reset.
14. system as claimed in claim 12 is characterized in that, described communication terminal also comprises radio communication device, and described center control device also comprises counting unit:
Described counting unit is used for not receiving the information that described Surveillance center is replied after sending the operating state data of preset quantity continuously, starts reset unit;
The described reset unit radio communication device that resets.
15. system as claimed in claim 12 is characterized in that, described center control device also comprises:
Described timing unit is used for failing to obtain the operating state data of described engineering machinery in Preset Time, start reset unit;
Described reset unit resets and obtains the device of this operating state data.
16. system as claimed in claim 15 is characterized in that, operating state data is a position data as described, the described reset unit described placement data acquisition device that resets.
17. system as claimed in claim 15 is characterized in that, operating state data is a floor data as described, the described reset unit described floor data harvester that resets.
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| CN2007101959805A CN101201624B (en) | 2007-12-14 | 2007-12-14 | Method and system for improving stability of engineering machinery communication terminal |
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| CN2007101959805A CN101201624B (en) | 2007-12-14 | 2007-12-14 | Method and system for improving stability of engineering machinery communication terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147614A (en) * | 2011-04-26 | 2011-08-10 | 航天科工深圳（集团）有限公司 | Method for monitoring operating condition of monitoring terminal, monitoring terminal and monitoring system |
| CN102322253A (en) * | 2011-05-06 | 2012-01-18 | 三一重工股份有限公司 | Engineering machine and working condition control method and working condition control system thereof |
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| FI105133B (en) * | 1998-08-06 | 2000-06-15 | Ericsson Telefon Ab L M | Error management and recovery in a data communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147614A (en) * | 2011-04-26 | 2011-08-10 | 航天科工深圳（集团）有限公司 | Method for monitoring operating condition of monitoring terminal, monitoring terminal and monitoring system |
| CN102147614B (en) * | 2011-04-26 | 2013-08-14 | 航天科工深圳（集团）有限公司 | Method for monitoring operating condition of monitoring terminal, monitoring terminal and monitoring system |
| CN102322253A (en) * | 2011-05-06 | 2012-01-18 | 三一重工股份有限公司 | Engineering machine and working condition control method and working condition control system thereof |
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| CN101201624B (en) | 2011-09-28 |
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