CN109739206A - A kind of monitoring device based on NB-IOT, engineering machinery and monitoring system - Google Patents

A kind of monitoring device based on NB-IOT, engineering machinery and monitoring system Download PDF

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Publication number
CN109739206A
CN109739206A CN201910165380.7A CN201910165380A CN109739206A CN 109739206 A CN109739206 A CN 109739206A CN 201910165380 A CN201910165380 A CN 201910165380A CN 109739206 A CN109739206 A CN 109739206A
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China
Prior art keywords
iot
engineering machinery
module
control module
monitoring
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Pending
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CN201910165380.7A
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Chinese (zh)
Inventor
王海兵
刘蜜
蔡芳芳
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Sany Automobile Manufacturing Co Ltd
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Sany Automobile Manufacturing Co Ltd
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Application filed by Sany Automobile Manufacturing Co Ltd filed Critical Sany Automobile Manufacturing Co Ltd
Priority to CN201910165380.7A priority Critical patent/CN109739206A/en
Publication of CN109739206A publication Critical patent/CN109739206A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

The present invention provides a kind of monitoring device based on NB-IOT, engineering machinery and monitoring systems, are related to engineering machinery field.Monitoring device based on NB-IOT includes NB-IOT communication module, control module and sensing device.Control module is connect with NB-IOT communication module and sensing device respectively.NB-IOT communication module and control module interact communication, and low energy consumption for NB-IOT module, and can continue to keep data carrying out upload downloading.Engineering machinery installs the monitoring device based on NB-IOT, realizes the real-time monitoring of engineering machinery related data, can be improved the utilization rate of engineering machinery, reduces the maintenance cost to engineering machinery.Engineering machinery client's monitoring system is convenient to carry out data transmission using NB-IOT technology in client, and low energy consumption and signal is strong.Engineering machinery monitoring system integrates entire monitoring system and engineering machinery, forms complete information chain and actuating station, and realization is efficiently utilized and safeguarded to engineering machinery.

Description

A kind of monitoring device based on NB-IOT, engineering machinery and monitoring system
Technical field
The present invention relates to engineering machinery fields, in particular to a kind of monitoring device based on NB-IOT, engineering machinery And monitoring system.
Background technique
In general, engineering machinery needs to wait the maintenance personnel of manufacturer to repair when something goes wrong, also, due to work Journey it is mechanical using more dispersed, maintenance personnel to construction site will spend more human and material resources and financial resources, extend maintenance Time reduces the utilization rate of equipment, increases the expense of maintenance.
Currently, also there is intermediate manufacturer to start using remote monitoring system, the operation information of equipment is passed through automatically wireless Network is reported to manufacturer, to find the problem in advance, adjusts equipment running status in time.But existing wireless network is thereon Downlink data is realized generally by GSM net, GPRS net or CDMA net.Using EM equipment module energy used in these networks Consumption is high, can not signal is weak even without letter long lasting for work, and in the construction environment of some tunnels, interior etc. Number, influence normal use.
Therefore, a kind of monitoring system applied to engineering machinery is designed, energy consumption can be lowered and there is good communication Signal is current urgent problem to be solved.
Summary of the invention
The purpose of the present invention further includes providing a kind of monitoring device based on NB-IOT, NB-IOT communication module and control mould Block interacts communication, and low energy consumption for NB-IOT module, and can continue to keep data carrying out upload downloading.
The purpose of the present invention further includes providing a kind of engineering machinery, installs the monitoring device based on NB-IOT, realizes work The real-time monitoring of journey machinery related data can be improved the utilization rate of engineering machinery, reduce the maintenance cost to engineering machinery.
The purpose of the present invention includes providing a kind of engineering machinery client monitoring system, convenient to use NB-IOT skill in client Art carries out data transmission, and low energy consumption and signal is strong.
The purpose of the present invention includes providing a kind of engineering machinery monitoring system to carry out entire monitoring system and engineering machinery It is integrated, complete information chain and actuating station are formed, realization is efficiently utilized and safeguarded to engineering machinery.
The first technical solution provided by the invention:
A kind of monitoring device based on NB-IOT, including NB-IOT communication module, control module and sensing device;It is described Control module is connect with the NB-IOT communication module and the sensing device respectively;
The sensing device is used for the supplemental characteristic of gathering project machinery, formation monitoring data, and by the monitoring data It is transferred to the control module;The monitoring data is sent to the NB-IOT communication module by the control module;The NB- The monitoring data is uploaded to outside by narrowband Internet of Things by IOT communication module, and is passed through outside the reception of narrowband Internet of Things Control instruction;The control instruction is transferred to the control module by the NB-IOT communication module;The control module is to institute It states control instruction to be analyzed and processed, obtains control command;The control command is sent to by the control module Engineering machinery.
It further, further include GPS module;The GPS module is connect with the control module;The GPS module is used for Location information is obtained, and the location information is sent to the control module;The control module to the location information into The NB-IOT communication module is sent to after row processing;The location information is uploaded to outside by the NB-IOT communication module.
It further, further include output display module;The output display module is connect with the control module;It is described defeated Display module sends control information to the control module out, and exports the monitoring data and control for showing that the control module obtains System instruction.
Further, the sensing device includes temperature sensor, displacement sensor, velocity sensor, vibrating sensor And at least one of pressure sensor.
Further, the control module is general processor.
Further, the NB-IOT communication module becomes one with the control module.
Second of technical solution provided by the invention:
A kind of engineering machinery, including the monitoring device based on NB-IOT described in mechanical body and the first scheme;Institute Stating mechanical body includes executing agency;The executing agency connect with the control module;The control module is by the control It executes instruction and is sent to the executing agency, control the movement of the executing agency.
Further, the executing agency connect with the sensing device;The sensing device monitors the executing agency Movement, form execution information, and the execution information be sent to the control module, the control module is to the execution Information carries out processing analysis, judges the working condition of executing agency's movement.
The third technical solution provided by the invention:
A kind of engineering machinery client monitoring system, including management client and the base station NB-IOT;The management client is logical The base station NB-IOT is crossed to connect with the NB-IOT communication module of engineering machinery described in second of technical solution;
The management client obtains monitoring data from the NB-IOT communication module by the base station NB-IOT;It is described The control instruction of management client is sent to the NB-IOT communication module by the base station NB-IOT.
4th kind of technical solution provided by the invention:
A kind of engineering machinery monitoring system, including monitor terminal and cloud server;The monitor terminal, cloud clothes The management client of engineering machinery client's monitoring system described in device and the third technical solution of being engaged in successively communication connection;Institute It states management client and the monitoring data is sent to the cloud server;The monitor terminal is obtained from the cloud server The monitoring data is taken, and the monitoring data is analyzed;
The monitor terminal show that terminal control instructs according to the monitoring data, and the terminal control is instructed and is sent To the cloud server, the management client obtains the terminal control instruction from the cloud server, and will be described Terminal control instruction is sent to the NB-IOT communication module by the base station NB-IOT.
The beneficial effect of a kind of monitoring system based on NB-IOT provided by the invention, monitoring device and engineering machinery is:
In monitoring device based on NB-IOT, NB-IOT communication module and control module interact communication, NB-IOT mould Low energy consumption for block, and the monitoring device based on NB-IOT can be monitored automatically, lasting to keep data carrying out upload downloading.
Monitoring device based on NB-IOT is installed in engineering machinery, realizes the real-time monitoring of engineering machinery related data, Timely the engineering machinery problem can be handled, can be improved the utilization rate of engineering machinery, while also reduced to work The maintenance cost of journey machinery.
Engineering machinery client's monitoring system is convenient to carry out data transmission using NB-IOT technology in client, using NB- Low energy consumption for module used in IOT technology, and the signal of NB-IOT communication is strong.
Engineering machinery monitoring system integrates entire monitoring system and engineering machinery, forms complete information chain and holds Row end, realization are efficiently utilized and are safeguarded to engineering machinery.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the system block diagram of engineering machinery monitoring system provided in an embodiment of the present invention;
Fig. 2 is the first system block diagram for the monitoring device based on NB-IOT that inventive embodiments provide;
Fig. 3 is second of system block diagram of the monitoring device based on NB-IOT that inventive embodiments provide;
Fig. 4 is the relationship block diagram of engineering machinery provided in an embodiment of the present invention and engineering machinery monitoring system.
Icon: 100- engineering machinery monitoring system;110- monitor terminal;120- cloud server;130- management client; The base station 140-NB-IOT;200- engineering machinery;Monitoring device of the 210- based on NB-IOT;211-NB-IOT communication module;212- Control module;213- sensing device;214-GPS module;215- exports display module;220- mechanical body;221- executing agency.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do Invention product using when the orientation or positional relationship usually put or those skilled in the art orientation or position that usually understand Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning or element are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply Relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, it can also be indirect by intermediary It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition State the concrete meaning of term in the present invention.
Embodiment
Referring to Fig. 1, present embodiments providing a kind of engineering machinery monitoring system 100 and engineering machinery 200.The engineering Mechanical monitoring system 100 is used to carry out data monitoring to engineering machinery 200, and realizes the adjustment to engineering machinery 200, dimension simultaneously Shield.
The engineering machinery monitoring system 100 include monitor terminal 110, cloud server 120, management client 130 and NB-IOT (Narrow BandInternettof Things, narrowband Internet of Things) base station 140.Monitor terminal 110, cloud service Device 120, management client 130 and the base station NB-IOT 140 are sequentially connected.Engineering machinery 200 includes the monitoring based on NB-IOT Equipment 210 and mechanical body 220 (being shown in Fig. 2).Monitoring device 210 and mechanical body 220 based on NB-IOT connect, NB- The base station IOT 140 is connect with the monitoring device 210 based on NB-IOT.In this way, by the base station NB-IOT 140 and based on NB-IOT's The data communication between engineering machinery monitoring system 100 and engineering machinery 200 is realized in the connection of monitoring device 210.
Specifically, the base station NB-IOT 140 obtains monitoring data from the monitoring device 210 based on NB-IOT, by monitoring data It is sent to management client 130.After management client 130 obtains monitoring data from the base station NB-IOT 140, monitoring data is sent To cloud server 120.After cloud server 120 obtains monitoring data, monitoring data is sent to monitor terminal 110.Monitoring Terminal 110 is managed by the manufacturer, and monitor terminal 110 is analyzed and processed monitoring data, and according to analysis and processing result Show that terminal control instructs.
The terminal control obtained according to analysis and processing result instruction is sent to cloud server 120 by monitor terminal 110.Cloud After end server 120 receives terminal control instruction, terminal control instruction is sent to management client 130.Management client 130 After receiving terminal control instruction, terminal control instruction is sent to the base station NB-IOT 140.The base station NB-IOT 140 receives terminal control After system instruction, terminal control is instructed to the monitoring device 210 based on NB-IOT being sent in engineering machinery 200.Based on NB- After the monitoring device 210 of IOT receives terminal control instruction, terminal control instruction is analyzed and processed, control execution is formed and refers to It enables.Control command is sent to the executing agency 221 on mechanical body 220 by the monitoring device 210 based on NB-IOT, control Executing agency 221 acts.
Referring to Fig. 2, monitoring device 210 in engineering machinery 200 based on NB-IOT include NB-IOT communication module 211, Control module 212, sensing device 213, GPS module 214 and output display module 215.Control module 212 respectively with NB-IOT Communication module 211, GPS module 214, sensing device 213 and output display module 215 connect.NB-IOT communication module 211 with Engineering machinery monitoring system 100 connects, i.e., NB-IOT communication module 211 is connect with the base station NB-IOT.Control module 212 also with hold Row mechanism 221 connects, and realizes the control that control module 212 acts executing agency 221.
Specifically, the supplemental characteristic of 213 gathering project machinery 200 of sensing device forms monitoring data, and by monitoring data It is sent to control module 212.In addition, GPS module 214 obtains the position letter of engineering machinery 200 when needing upload location information Breath, and location information is sent to control module 212.Control module 212 obtains monitoring data, location information or monitoring data After location information, monitoring data, location information or monitoring data and location information are handled, and by monitoring data, Location information or monitoring data and location information are sent to NB-IOT communication module 211.NB-IOT communication module 211 receives prison Data, location information are controlled perhaps after monitoring data and location information by monitoring data, location information or monitoring data and position Information is sent to the base station NB-IOT 140.Monitoring data, location information or monitoring data and location information pass sequentially through NB-IOT Base station 140, management client 130, cloud server 120 are sent to monitor terminal 110.
After the acquisition of monitor terminal 110 monitoring data, location information or monitoring data and location information, carry out at analysis Reason forms terminal control instruction, and terminal control instruction is sent to cloud server 120.Terminal control instruction is successively passed through Cloud server 120, management client 130, the base station NB-IOT 140 and NB-IOT communication module 211 are sent to control module 212.After control module 212 receives terminal control instruction, terminal control instruction is analyzed and processed, control execution is formed and refers to It enables, and control command is sent to executing agency 221, control the movement of executing agency 221.
It is worth noting that sensing device 213 is used for the supplemental characteristic of gathering project machinery 200, parameter number collected It is determined according to according to the type of engineering machinery 200 and actual needs, therefore, the wide variety of sensing device 213 may include In the different types of sensor such as temperature sensor, displacement sensor, velocity sensor, vibrating sensor and pressure sensor Any one at least one or these different sensors combination, sufficiently to meet the needs monitored to engineering machinery 200.
The type of control module 212 is also various, as long as can be realized, data are uploaded, downloading and processing are all desirable. Control module 212 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), Network processing unit (Network Processor, abbreviation NP) etc.;It can also be digital signal processor (Digital Signal Processor, abbreviation DSP), specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or other are programmable Logical device, discrete gate or transistor logic, discrete hardware components etc..
Certainly, control module 212 and NB-IOT communication module 211 can also become one, and facilitate installation and manufacture.
In addition, operating personnel can issue control information to the machine of execution to control module 212 by output display module 215 Structure 221 is controlled, and also can be sent data to control module 212, be realized the data communication with engineering machinery monitoring system 100. Also, the position that monitoring data, the GPS module 214 that exporting display module 215 can also show that sensing device 213 is formed provide The control command that the terminal control instruction and control module 212 that information, engineering machinery monitoring system 100 are sent are formed.
Referring to Fig. 3, after in order to determine that control module 212 sends control command to executing agency 221, executing agency 221 can correctly be acted, and sensing device 213 can be connect with executing agency 221.In this way, sensing device 213 can be to executing agency 221 movement is monitored, and is formed execution information, and execution information is sent to control module 212, by control module 212 Judge 221 working condition of executing agency, if whether correct execution acts, whether in place etc. movement.Certainly, control module 212 is right The judging result of 221 working condition of executing agency can also be sent to output display module 215, make output display module 215 defeated It shows out.
It is monitored referring to Fig. 4, engineering machinery monitoring system 100 can simultaneously realize multiple engineering machinery 200, in this way, energy The enough efficiency for improving monitoring, and the validity that can effectively ensure to monitor based on the mechanics of communication of NB-IOT is determined with positive.Tool Body, monitoring device 210 and engineering machinery 200 based on NB-IOT correspond.It needs to count multiple engineering machinery 200 NB-IOT communication module 211 while and NB- when according to monitoring, in each engineering machinery 200 in the monitoring device based on NB-IOT The base station IOT 140 connects, and realizes engineering machinery monitoring system 100 to the real time monitoring of multiple engineering machinery 200.
It should be noted that the data between engineering machinery monitoring system 100 and monitoring device 210 based on NB-IOT are logical News can activate the upload for carrying out data, downloading automatically.Also, entire monitoring system self-movement, whether mechanical body 220 works Have no effect on the operation of entire monitoring system.In this way, can be continued for monitoring to engineering machinery 200.
This present embodiment also provides a kind of engineering machinery client monitoring system, including the interconnection provided in the present embodiment Management client 130 and the base station NB-IOT 140.Wherein, the base station NB-IOT 140 is connect with NB-IOT communication module 211.
Management client 130 obtains monitoring data, management visitor from NB-IOT communication module 211 by the base station NB-IOT 140 The terminal control instruction at family end 130 is sent to NB-IOT communication module 211 by the base station NB-IOT 140.Engineering machinery client prison Control system, convenient to carry out data transmission using NB-IOT technology in client, low energy consumption and signal is strong.
A kind of monitoring device 210 based on NB-IOT, engineering machinery 200 and monitoring system provided by the invention, it is main to have Have the following the utility model has the advantages that
Data transmission is carried out using NB-IOT technology to the monitoring data of collected engineering machinery 200, can be continued It keeps in communication, and the mechanics of communication signal based on NB-IOT is strong, can keep in communication under complicated engineering-environment, and adopted Module energy consumption is small, save the cost, and improves the utilization rate of engineering machinery 200, reduces the maintenance of engineering machinery 200 Expense.
Engineering equipment monitoring system integrates entire monitoring system and engineering machinery 200, forms complete information chain And actuating station, realization are efficiently utilized and are safeguarded to engineering machinery.
It should be noted that appended drawing reference with the arrow in all attached drawings refers to the direction of transfer of codes or data information, without The appended drawing reference of arrow is to refer to entity structure.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of monitoring device based on NB-IOT, which is characterized in that including NB-IOT communication module, control module and sensing Device;The control module is connect with the NB-IOT communication module and the sensing device respectively;
The sensing device is used for the supplemental characteristic of gathering project machinery, formation monitoring data, and by the monitoring data transmission To the control module;The monitoring data is sent to the NB-IOT communication module by the control module;The NB-IOT The monitoring data is uploaded to outside by narrowband Internet of Things by communication module, and passes through the control outside the reception of narrowband Internet of Things Instruction;The control instruction is transferred to the control module by the NB-IOT communication module;The control module is to the control System instruction is analyzed and processed, and obtains control command;The control command is sent to engineering by the control module It is mechanical.
2. as described in claim 1 based on the monitoring device of NB-IOT, which is characterized in that further include GPS module;The GPS Module is connect with the control module;The location information is sent to described by the GPS module for obtaining location information Control module;The control module is sent to the NB-IOT communication module after handling the location information;The NB- The location information is uploaded to outside by IOT communication module.
3. as described in claim 1 based on the monitoring device of NB-IOT, which is characterized in that further include output display module;Institute Output display module is stated to connect with the control module;The output display module sends control information to the control module, And export the monitoring data and control instruction for showing that the control module obtains.
4. as described in claim 1 based on the monitoring device of NB-IOT, which is characterized in that the sensing device includes that temperature passes At least one of sensor, displacement sensor, velocity sensor, vibrating sensor and pressure sensor.
5. as described in claim 1 based on the monitoring device of NB-IOT, which is characterized in that the control module is general procedure Device.
6. as described in claim 1 based on the monitoring device of NB-IOT, which is characterized in that the NB-IOT communication module and institute Control module is stated to become one.
7. a kind of engineering machinery, which is characterized in that including mechanical body and it is as claimed in any one of claims 1 to 6 be based on NB- The monitoring device of IOT;The mechanical body includes executing agency;The executing agency connect with the control module;The control The control command is sent to the executing agency by molding block, controls the movement of the executing agency.
8. engineering machinery as claimed in claim 7, which is characterized in that the executing agency connect with the sensing device;Institute The movement that sensing device monitors the executing agency is stated, forms execution information, and the execution information is sent to the control Module, the control module carry out processing analysis to the execution information, judge the working condition of executing agency's movement.
9. a kind of engineering machinery client monitoring system, which is characterized in that including management client and the base station NB-IOT;The management The NB-IOT communication module that client passes through engineering machinery described in the base station NB-IOT and claim 7-8 any one Connection;
The management client obtains monitoring data from the NB-IOT communication module by the base station NB-IOT;The management The control instruction of client is sent to the NB-IOT communication module by the base station NB-IOT.
10. a kind of engineering machinery monitoring system, which is characterized in that including monitor terminal and cloud server;The monitor terminal, The management client of the cloud server and engineering machinery client monitoring system as claimed in claim 9 successively company of communicating It connects;The monitoring data is sent to the cloud server by the management client;The monitor terminal takes from the cloud Business device obtains the monitoring data, and analyzes the monitoring data;
The monitor terminal show that terminal control instructs according to the monitoring data, and terminal control instruction is sent to institute State cloud server, the management client obtains the terminal control instruction from the cloud server, and by the terminal Control instruction is sent to the NB-IOT communication module by the base station NB-IOT.
CN201910165380.7A 2019-03-05 2019-03-05 A kind of monitoring device based on NB-IOT, engineering machinery and monitoring system Pending CN109739206A (en)

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