CN103246223A - Zigbee-based sensing measurement and control system - Google Patents
Zigbee-based sensing measurement and control system Download PDFInfo
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- CN103246223A CN103246223A CN2013101475588A CN201310147558A CN103246223A CN 103246223 A CN103246223 A CN 103246223A CN 2013101475588 A CN2013101475588 A CN 2013101475588A CN 201310147558 A CN201310147558 A CN 201310147558A CN 103246223 A CN103246223 A CN 103246223A
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Abstract
The invention discloses a Zigbee-based sensing measurement and control system. The network structure of the system is a master-slave network structure, and a master node is connected with a child node through a wired or wireless network; a sampling node adopts a universal interface; the child node adopts wired and wireless hybrid networking; the child node comprises the sampling node, a converting-transmitting node and a control node and is used for respectively completing signal sampling, signal type conversion and sampling process control; and the master node adopts an ARM (Advanced RISC (Reduced Instruction Set Computer) Machines) processor embedded in an operating system. The child node can perform networking respectively through the wireless network/the wired network according to different functions, and the wired and wireless hybrid networking can efficiently take the advantages of the wireless network and the wired network; the sampling node is designed into the universal interface which can be compatible with most sensor interfaces; a user can flexibly add different kinds of nodes, so that the cost is effectively saved; and software products of different functions can be embedded in the operating system according to the needs of the user, and some functions can be cut out.
Description
Technical field
The present invention relates to a kind of wireless sensing program control system, particularly a kind of sensing TT﹠C system based on Zigbee.
Background technology
At present, no paper datalogger, wireless data registering instrument have not only been realized the no paper storage of data, also possess the analysis of data and to the support of configuration software.
But the said goods does not possess wireless collection function and control function, and the degree of modularity of sampling section is not high, does not possess portable functional yet.Aspect wireless record and control, product test parameter of the prior art is single, function is powerful inadequately, does not also occur unified standard simultaneously.
Summary of the invention
At the problems referred to above that exist in the wireless data recording process in the prior art, technology such as integrated use radio network technique of the present invention, no paper Data recording technique, intelligent control technology, low consumption circuit technology, effectively sensor and Intelligent treatment are combined, provide a kind of sensing TT﹠C system based on Zigbee, for networking and the intellectuality of sensor provides a scheme.
Technical scheme of the present invention is:
A kind of sensing TT﹠C system based on Zigbee, the network structure of described system adopts the master-slave network structure, and host node is connected with child node by wired or wireless network.
Further, described sampling node adopts general-purpose interface.
Further, described child node adopts wired and wireless mixed networking.
Further, described child node comprises sampling node, becomes and send node and control node, finishes signal sampling, signal type conversion, sample streams process control respectively; Host node adopts the arm processor of Embedded Operating System.
Further, the structure of described host node comprises arm processor, display screen, input equipment, USB flash disk interface, Ethernet interface, Zigbee wireless communication module, RS485 communication interface, described LCDs, keyboard, USB flash disk interface, Ethernet interface, Zigbee wireless communication module, RS485 communication interface are connected with arm processor respectively, and described, Zigbee wireless communication module is connected with the RS485 communication interface.
Further, the structure of described child node comprises battery management circuit, battery, battery charge interface, mimic channel, low-power scm, Zigbee wireless communication module, described battery, battery charge interface, mimic channel, low-power scm, Zigbee wireless communication module are connected with the battery management circuit respectively, and described low-power scm is connected with the Zigbee wireless communication module with mimic channel respectively.
Further, described input equipment is keyboard.
Further, described battery is lithium battery.
The invention has the beneficial effects as follows:
1, child node can be carried out networking by wire/wireless respectively by the function difference, this wireless and wired mixed networking can effectively be brought into play the advantage of wireless network and wired network, for example in the spacious space that is unfavorable for connecting up, wireless connections can be used, and in shielding space, wired connection can be used.
2, for the compatible most of sensor interfaces of energy, sampling node is designed to general-purpose interface, can measure basic parameters such as voltage, electric current, resistance, frequencies, also can directly connect sensor or fieldbus signals such as measuring various thermopairs, thermal resistance, the MCU by node carries out converting digital quantity to after the mathematics calibration and is transferred to host node.
3, in order to realize real wireless penetration design, we are designed to portable node (particularly sampling node) with child node, are with the correlation module card just can carry out data acquisition communication in the valid wireless communication context.
4, child node realizes that by it function can be divided into sampling node, become and send node and control node etc., and the user can add different types of node flexibly according to the actual functional capability needs like this, has effectively saved cost; Host node adopts arm processor and Embedded Operating System, can embed the software product of difference in functionality according to user's needs, and can carry out cutting to some function.
Description of drawings
Fig. 1 is the structural representation of a kind of sensing TT﹠C system based on Zigbee of the present invention;
Fig. 2 is the structural representation of host node among the present invention;
Fig. 3 is the structural representation of child node among the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
A kind of sensing TT﹠C system based on Zigbee of the present invention is the wireless sense network system of a collection sensing, control.The network structure of this system adopts the master-slave network structure, and host node can be connected with child node by wired (RS485) or wireless network (Zigbee).Zigbee has following characteristics: 1, low-power consumption is fit to powered battery; 2, low cost, communications protocol is simple, and frequency range is exempted from license; 3, communication distance 100m, power can reach 1km after increasing, and communication speed 20 ~ 250kpbs is fit to signals collecting; 4, safe and reliable, adopt three level security patterns.
A kind of sensing TT﹠C system based on Zigbee of the present invention comprises host node and some child nodes, as shown in Figure 1.
The structure of host node is formed as shown in Figure 2, comprises arm processor, LCDs, keyboard, USB flash disk interface, Ethernet interface, zigbee wireless communication module, RS485 communication interface.Wherein, LCDs, keyboard, USB flash disk interface, Ethernet interface, zigbee wireless communication module, RS485 communication interface are connected with arm processor respectively, and the Zigbee wireless communication module is connected with antenna with arm processor.
The structure of each child node is formed as shown in Figure 3, comprises battery management circuit, lithium battery, battery charge interface, mimic channel, low-power scm, Zigbee wireless communication module.Wherein electric power management circuit is connected with lithium battery, power source charges interface respectively, electric power management circuit is connected with mimic channel, low-power scm, Zigbee wireless communication module simultaneously, low-power scm is connected with the Zigbee wireless communication module with mimic channel respectively, and the Zigbee wireless communication module links to each other with transmit receive antenna.The child node net that should be able to network at random/move back, and software application should be able to be by the random cutting of user to satisfy self needs.
Host node and each child node transceiver are set up a wired and wireless hybrid network (Fig. 1), and host node carries out wired connection by wired RS485 serial mode, carries out wireless telecommunications with child node by wireless zigbee network.In the zigbee network, a plurality of communication nodes can freely network, and can realize the reliable transmission of packet in network, and make each node at software and hardware good extensibility be arranged, and can insert the multiple sensor signal at any time in network.
A telegon must be arranged in the network, and this telegon is exactly host node, and Fig. 2 is the design proposal of host node.It can wait for then that terminal device networked at first to each attribute initialization of network before network is set up.In the design proposal, host node uses embedded OS, is responsible for the networking between realization data analysis, man-machine interaction and the child node, can realize the function expansion by embedding program module.
Child node adopts 1800 MAH powered battery, and in child node during by Zigbee net access network, portable in order to realize realizing, low-power consumption is the factor that needs most consideration.Because lithium battery can only only use tens hours continuously, and also have other circuit to need power consumption, should guarantee the unimpeded of communication this moment, guarantees low-power consumption again, can effectively utilize the dormancy of Zigbee so.Fig. 3 is the hardware scheme of child node.If submodule is acquisition module, mimic channel image data and processing pass to low-power scm, and low-power scm passes to host node by Zigbee wireless communication module and antenna.
Child node comprises sampling node, becomes and send node and control node etc. among the present invention, finishes signal sampling, signal type conversion, sample streams process control etc. respectively; Host node adopts arm processor, and Embedded Operating System, and software application is responsible for realizing data analysis, data conversion storage, man-machine interaction etc.Host node is by respective handling, and provides corresponding control information and pass to other and carry out child node.(each physical address from node module is unique to the child node physical address of all networkings, be stored in the EEPROM from the single-chip microcomputer of node module) be stored in the ARM storer of host node module 1 these physical addresss and data composition data bag together when communication.The son node number expansion is more than 20, can be divided into sampling child node, control child node, become each sampling child nodes such as sending child node have 4 testable parameters of test channel sampling child node have voltage (0 ~ 5V), electric current (0 ~ 20mA), (host node such as 1 ~ 10kHz) has data is not had the paper writing function, can directly be stored in USB flash disk for resistance (0 ~ 1k Ω), frequency.Host node can carry out the waveform drafting and analyze host node having and the Ethernet networking function to the data of gathering, and supports some configuration softwares.When the user need send into fieldbus signal with certain sensor signal change, host node obtains specifying by wireless transmission method after the sensor signal of the dedicated tunnel on the acquisition module by sending instruction after the computing to host node, by the host node transfer and will be wirelessly sent to the transmitting module of appointment, transmitting module is exported corresponding fieldbus signal curtage according to the instruction that receives.The alarm module function is by certain signal of gathering the road is monitored, in case find that this signal exceeds host node and sets scope, just control open or closed module on relay, host node relatively sends instruction to host node in the back by setting upper lower limit value with the user after obtaining specifying the sensor signal of the dedicated tunnel on the acquisition module, by the host node transfer and will be wirelessly sent to the alarm module of appointment.
The above only is preferred embodiment of the present invention, not in order to limit the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. sensing TT﹠C system based on Zigbee is characterized in that: the network structure of described system adopts the master-slave network structure, and host node is connected with child node by wired or wireless network.
2. a kind of sensing TT﹠C system based on Zigbee according to claim 1 is characterized in that: described sampling node employing general-purpose interface.
3. a kind of sensing TT﹠C system based on Zigbee according to claim 1 is characterized in that: the wired and wireless mixed networking of described child node employing.
4. a kind of sensing TT﹠C system based on Zigbee according to claim 1 is characterized in that: described child node comprises sampling node, becomes and send node and control node, finishes signal sampling, signal type conversion, sample streams process control respectively; Host node adopts the arm processor of Embedded Operating System.
5. according to any described a kind of sensing TT﹠C system based on Zigbee in the claim 1 to 4, it is characterized in that: the structure of described host node comprises arm processor, display screen, input equipment, USB flash disk interface, Ethernet interface, Zigbee wireless communication module, RS485 communication interface, described LCDs, keyboard, USB flash disk interface, Ethernet interface, Zigbee wireless communication module, RS485 communication interface are connected with arm processor respectively, and described, Zigbee wireless communication module is connected with the RS485 communication interface.
6. according to any described a kind of sensing TT﹠C system based on Zigbee in the claim 1 to 4, it is characterized in that: the structure of described child node comprises battery management circuit, battery, battery charge interface, mimic channel, low-power scm, Zigbee wireless communication module, described battery, battery charge interface, mimic channel, low-power scm, Zigbee wireless communication module are connected with the battery management circuit respectively, and described low-power scm is connected with the Zigbee wireless communication module with mimic channel respectively.
7. a kind of sensing TT﹠C system based on Zigbee according to claim 5, it is characterized in that: described input equipment is keyboard.
8. a kind of sensing TT﹠C system based on Zigbee according to claim 6, it is characterized in that: described battery is lithium battery.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103796337A (en) * | 2013-12-31 | 2014-05-14 | 江苏宁克传感器科技有限公司 | Wireless sensor network node system |
| CN105551226A (en) * | 2015-12-04 | 2016-05-04 | 江西飞尚科技有限公司 | Low-power consumption intelligent data acquisition box |
| CN105791055A (en) * | 2016-04-22 | 2016-07-20 | 青岛海尔空调电子有限公司 | Multi-couple unit inner and outer unit communication connection device and communication method thereof |
| CN109308799A (en) * | 2018-11-13 | 2019-02-05 | 延锋伟世通电子科技（上海）有限公司 | The wired and wireless compatible means of communication and device for battery core monitoring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796337A (en) * | 2013-12-31 | 2014-05-14 | 江苏宁克传感器科技有限公司 | Wireless sensor network node system |
| CN105551226A (en) * | 2015-12-04 | 2016-05-04 | 江西飞尚科技有限公司 | Low-power consumption intelligent data acquisition box |
| CN105791055A (en) * | 2016-04-22 | 2016-07-20 | 青岛海尔空调电子有限公司 | Multi-couple unit inner and outer unit communication connection device and communication method thereof |
| CN110578996A (en) * | 2016-04-22 | 2019-12-17 | 青岛海尔空调电子有限公司 | multi-connected indoor and outdoor unit communication connecting device and communication method thereof |
| CN109308799A (en) * | 2018-11-13 | 2019-02-05 | 延锋伟世通电子科技（上海）有限公司 | The wired and wireless compatible means of communication and device for battery core monitoring device |
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Application publication date: 20130814 |