CN201690618U - Multifunctional wireless Mesh gateway device for multi-RF mine - Google Patents
Multifunctional wireless Mesh gateway device for multi-RF mine Download PDFInfo
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Abstract
The utility model provides a multifunctional wireless Mesh gateway device for a multi-RF mine and a control system thereof. The gateway device comprises a main control system board, a subsystem board and the like, wherein the main control system board comprises a main controller, a main control sytem power processing module, a ZigBee communication module and an energy-saving control circuit; the subsystem board comprises a sub controller, a subsystem power processing module and a WiFi intelligent access card and the like; and the control system of the multifunctional wireless Mesh gateway device for the multi-RF mine comprises a hardware device low-level drive system, an embedded operation system, an energy saving system and a multifunctional Mesh gateway control system. The multifunctional wireless Mesh gateway device for the multi-RF mine and the control system thereof have the advantages of supporting simultaneous the transmission of multimedia services in a multi-RF-channel WiFi wireless Mesh network and a ZigBee wireless Mesh network, realizing the network integration of industrial Ethernets, field buses and WiFi wireless local area networks, supporting high-reliability communication and self-organized network as well as communication energy saving mechanism and effectively prolonging the standby service life.
Description
Technical field
The utility model relates to the multi-media radio communications field, mine, specifically, is a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine.
Background technology
China's Mine Safety in Production accident and natural calamity take place often, for the ease of the daily investigation potential safety hazard in ore deposit side and preventing trouble before it happens, can organize emergency repair strength fast when avoiding mine natural calamity and industrial accident generation such as particularly serious and disaster accident to take place and make commanding and decision-making such as search and rescue, develop mine multi-media radio signal equipment and have very great and the urgent realistic meaning.
The emergency communication of tradition mine multimedia is in wired mode, and along with the development of short-range communication technique such as downhole wireless transducer networking and WLAN (wireless local area network) and the increase of application demand, Wi-Fi communication is just demonstrating superiority incomparably flexibly.At present, the general technology such as explosion-proof intercom, through the earth communication or system for mine personal handphone that adopt of the emergent radio communication system that mine emergency rescue group is equipped with, these technology all face function singleness and do not support limitation such as the real-time reliable transmission of multimedia communication service.For example explosion-proof intercom is to adopt point-to-point half-duplex wireless communication technology, do not support the multimedia information acquisition terminal to insert and the multi-hop wireless transmission, and transmission range is subject to the tunnel complex environment greatly.The restriction that through the earth communication is disposed by loop aerial can't be covered the disaster and the accident generation area that do not possess the loop aerial deployment conditions, as the digging operation face.System for mine personal handphone is because wireless working frequency range is relatively low, and for noisy environment, the transmission of its signal will be had a strong impact on, and the Personal Handyphone System transmission rate has only 64Kb/s～128Kb/s, can't satisfy the demand of multimedia service wideband transmit.
WiFi (Wireless Fidelity, Wireless Fidelity) wireless Mesh netword adopts and supports IEEE802.11s standard and the WLAN (wireless local area network) (transmission technology of IEEE 802.11 (a/b/g/n), wherein bandwidth rates can reach 11Mb/s, 54Mb/s and 108Mb/s, even higher.The WiFi wireless Mesh netword has advantages such as the IP of support interconnection technique, high bandwidth, multi-hop transmission, self-organization of network, dynamic routing and the easy deployment of self study, wireless communication link self-healing and network thereof, but the equipment work power consumption is bigger usually.Although the broadband emergency communication equipment based on wireless Mesh netword is more extensive in Ground Application, that is because be not subjected to supply power mode, weight, power-supply battery capacity and circuit design must meet the restriction of conditions such as essential safety in Ground Application.When really being applied to underground communica tion, but be difficult to the suitable portable intrinsic safety electric source of design, particularly face weight of equipment and power-supply battery Capacity design practical difficulty such as be difficult to meet consumers' demand.Therefore, how guaranteeing standby life-span and the transmission of supporting multimedia service that these equipment are long as far as possible in the down-hole, is that can current wireless Mesh network technology use the key technology challenge that faces in the mine communication field.
The shortcoming of prior art is: existing various mining multimedia telecom equipment function singlenesses, wireless transmission power consumption, transmission bandwidth and transmission range index all are subjected to mutual restriction, real-time reliable transmission that can not fine support multimedia communication service.Though existing ground WiFi wireless Mesh netword has advantages such as the IP of support interconnection technique, high bandwidth, multi-hop transmission, self-organization of network, dynamic routing and self study thereof, is subjected to the restriction of underground power supply used for mine mode and power supply capacity again.Though we have proposed a kind of multi-radio frequency mining multifunctional wireless Mesh route device, but also lack a kind of gateway apparatus that can be complementary with the multi-radio frequency mining multifunctional wireless Mesh route device in the prior art, require to support the fusion of multiple communication network, the real-time reliable transmission of multimedia communication service can be satisfied, and the restriction of underground power supply used for mine mode and power supply capacity can be adapted to.
The utility model content
The purpose of this utility model provides a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, not only be adapted to the environmental constraints of mine radio communication, also has multimedia service wideband transmit function simultaneously, different isomerization networks such as Industrial Ethernet, fieldbus and WIFI WLAN (wireless local area network) can be realized the interconnected and network integration, help real-time reliable transmission of information such as down-hole various device work and site environment state, rescue personnel's positional information, rescue command communication traffics to the ground Police Command Center.When even urgent the condition of a disaster or original communication static infrastructure or electric power system inefficacy take place in the down-hole, this device still can be supported the interim urgent cordless communication network of disposing of emergent rescue team member flexibly, at utmost the down-hole the condition of a disaster is uploaded to the ground Police Command Center by multiple modes such as wireless multi-hop transmission, so that in time make appropriate rescue command decision-making.And multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine provided by the utility model has that wireless transmission is reliable, communication quality stable, cost is low, standby life-span length, strong interference immunity, characteristics such as easy to use, be particularly suitable for wireless communications application such as the emergent search and rescue of China's mine disaster, have very big social benefit and economic benefit.
For achieving the above object, the utility model provides a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, form by master control system plate and subsystem plate, its key is: described master control system plate is provided with master controller MCU, the first serial end of this master controller MCU is connected with the ZigBee communication module, the second serial end of this master controller MCU is connected with the 0th serial ports end of serial ports expansion module, the first serial end of described serial ports expansion module is connected with first modular converter, the output port of this first modular converter is a field-bus interface, the second serial end of described serial ports expansion module is connected with second modular converter, the output port of this second modular converter is the RS232 interface, the 3rd serial ports end of described serial ports expansion module is connected with the 3rd modular converter, the output port of the 3rd modular converter is the RJ45 network interface, be connected with power supply input gating module and RJ45 interface gating circuit on the described master controller MCU, described power supply input gating module is used to control the power supply input on off operating mode of described subsystem plate, and described RJ45 interface gating circuit is used to control the output port of described the 3rd modular converter and the on off operating mode of Industrial Ethernet interface;
Described subsystem plate is provided with sub-controller CPU, this sub-controller CPU is connected with at least one WiFi intelligence access card through internal bus, also be connected with subsystem RS232 serial ports, subsystem RJ45 first network interface and subsystem RJ45 second network interface on the described internal bus, described subsystem RS232 serial ports is connected with the RS232 interface of described master control system plate, described subsystem RJ45 second network interface is connected with the RJ45 interface of described master control system plate, and described subsystem RJ45 first network interface is connected with described Industrial Ethernet interface.
Master controller MCU realizes that by first serial communication interface carrying out the network information with the ZigBee communication module reaches data processing, protocol conversion and ZigBee network internal map addresses etc. alternately.The master control system plate expands to three TTL232 communication interfaces by the serial ports expansion module is set with second serial communication interface of master controller MCU.Wherein a TTL232 interface is converted to the RS485 field-bus interface through first modular converter, realize and down-hole RFID (Raido FrequencyIdentification, REID) personnel positioning equipment interconnected with communicate by letter, the 2nd TTL232 interface converts the RS232 interface to and links to each other with subsystem RS232 serial ports through second modular converter, realize master control system plate and the interconnected of subsystem plate and communicate by letter, the 3rd TTL232 interface is converted to the RJ45 interface and links to each other with subsystem RJ45 second network interface through the 3rd modular converter, is mainly used in to realize and being connected of outside Industrial Ethernet network.
Described subsystem plate is called WiFi Mesh system board again, wherein sub-controller CPU is used to coordinate and the work of managing each part of communicating by letter of WiFi Mesh system board, be embedded in embedded real-time operating system powerful and that support multi-hop wireless Mesh network routing function at sub-controller CPU, and supported functions such as IEEE 802.11a/b/g WLAN standard and 802.11s wireless Mesh netword draft standard.WiFi intelligence access card, subsystem RS232 serial ports and subsystem RJ45 first network interface and subsystem RJ45 second network interface all are to realize Mesh bridge joint interconnected communication by the internal bus on the WiFi Mesh system board.Described WiFi intelligence access card is supported the wireless access of IEEE 802.11a/b/g wireless technology standard and multimedia information acquisition terminals such as data, voice, image and video fully.
Described RJ45 interface gating circuit is provided with and enables control port, this enables control port and is connected with the Energy Saving Control signal output port of described master controller MCU, a communication interface of described RJ45 interface gating circuit is connected with the RJ45 interface of described the 3rd modular converter, and another communication interface of this RJ45 interface gating circuit is connected with described Industrial Ethernet interface.
Described power supply input gating module is provided with the power enable control port, this power enable control port also is connected with the Energy Saving Control signal output port P1.7 of described master controller MCU, and the output of described power supply input gating module is described subsystem plate power supply.
The level that changes described Energy Saving Control signal output port output by master controller MCU is controlled the work output state of power supply input gating module, thereby realizes the on/off control of antithetical phrase system board, effectively reduces expending of system power supply energy.During the group system cut-off, the work of described master controller MCU control RJ45 interface gating circuit makes RJ45 interface on the 3rd modular converter directly carry out data double-way with the Industrial Ethernet interface and transmits.
On described master control system plate, also be provided with portable intrinsic safety electric source processing module of big capacity and master control system power supply processing module, on the subsystem plate, also be provided with the subsystem power supply processing module, the input of described intrinsic safety electric source processing module is connected with extraneous Portable DC intrinsic safety electric source, and the output of this intrinsic safety electric source processing module is connected on the input of described master control system power supply processing module and power supply input gating module.The output of described master control system power supply processing module is described master control system plate power supply, the output of described power supply input gating module is connected with the input of described subsystem power supply processing module, and the output of this subsystem power supply processing module is other functional module power supply of described subsystem plate.
The big portable intrinsic safety electric source processing module of capacity obtains the power supply input from extraneous Portable DC power supply after, will carry out intrinsic safety from the power supply of external world's input and handle, last voltage stabilizing output is so that guarantee the operate as normal of each module on the master control system plate.Can realize the wide-range voltage input of extraneous power supply by the portable intrinsic safety electric source processing module of big capacity that is provided with.
Be connected with 3 Mini-PCI interfaces on the internal bus of described subsystem plate, the described Mini-PCI interface described WiFi intelligence access card of pegging graft.
System supports 3 WiFi Mesh wireless extensions Mini-PCI interfaces, and WiFi intelligence access card has made things convenient for the flexible installation and the replacing of WiFi intelligence access card by WiFi Mesh wireless extensions interface and described internal bus bridge joint and interconnected communication.
Described ZigBee communication module disposes first RF of the high-gain omnidirectional antenna, and its working frequency range is 2.4GHz; Be used for the transmitting-receiving of ZigBee network insertion and business datum, for down-hole RFID personnel positioning equipment and other ZigBee sensor terminal data services provide a wireless Mesh netword communications platform.Described WiFi intelligence access card disposes second RF of the high-gain omnidirectional antenna, and its working frequency range is 2.4GHz or 5.8GHz.Be used for being responsible for the access and the data transmit-receive of service terminals such as WiFi sound, video.Adopt the business datum of a plurality of RF antenna independent process ZigBee wireless Mesh networds and WiFi wireless Mesh netword, system communication stability and reliability are higher, adopt the high-gain RF of omnidirectional antenna, simplified the installation steps of RF antenna, strengthened the disaster environment adaptive capacity of system.
The utility model also provides a kind of control system of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, and its key feature is: hardware device bottom layer driving system, embedded OS, energy-saving control system and multi-functional Mesh gateway control system are set;
Described multi-functional Mesh gateway control system is made up of ZigBee protocol module, User Defined protocol module, 802.15.4 protocol module, multiprotocol conversion and address mapping module, 802.11 protocol modules, 802.3 protocol modules and IP agreement and the address mapping module of supporting the wireless Mesh netword route;
Wherein ZigBee protocol module and 802.15.4 protocol module are arranged in the ZigBee communication module, described 802.15.4 protocol module is used to support that the physical layer of ZigBee wireless sensor network inserts, and described ZigBee protocol module is used to realize the Mesh network route and the multi-hop wireless transmission of ZigBee wireless Mesh netword business datum;
User Defined protocol module and multiprotocol conversion and address mapping module are arranged among the master controller MCU, described User Defined protocol module is used to support that the physical layer of fieldbus business datum inserts, and described multiprotocol conversion and address mapping module are used to realize that the fieldbus business datum is converted to ZigBee wireless Mesh netword business datum;
802.11 protocol module, 802.3 protocol modules and IP agreement and address mapping module are arranged among the subsystem CPU, described 802.11 protocol modules are used to support that the physical layer of WiFi wireless Mesh netword inserts, the physical layer that described 802.3 protocol modules are used for the supporting industry Ethernet inserts, and described IP agreement and address mapping module are used to realize the network integration of ZigBee wireless Mesh netword, WiFi wireless Mesh netword and Industrial Ethernet network business datum.
Various protocols module and protocol conversion module be common forms a multi-functional gateway control system, realize supporting simultaneously the networking and the integrated services of WiFi wireless Mesh netword, ZigBee wireless Mesh netword and Industrial Ethernet network, its main processing service data type has: WiFi wireless Mesh netword business datum, Industrial Ethernet network business datum, ZigBee wireless Mesh netword business datum and fieldbus business datum.
From ZigBee wireless Mesh netword business datum is to transmit through being implemented in TCP/IP network or the wlan network after multiprotocol conversion and map addresses and IP agreement and the map addresses, and final and Industrial Ethernet network merges.From also can in TCP/IP network or wlan network, transmitting after WiFi wireless Mesh netword business datum process IP agreement and the address mapping module processing, realize fusion with the Industrial Ethernet network.
In data transmission procedure, the mining multifunctional wireless Mesh gateway device is by RF channel interface (the passive RF antenna of channel arrangement 2.4GHz high-gain, the passive RF antenna of another one configuration 2.4GHz/5.8GHz high-gain) and the interconnected and two-way communications of mining multimedia emergency management and rescue terminal equipment such as outside mining Wireless Mesh router, 2.4GHz ZigBee transducer, mining video and IMAQ terminal, mine intrinsic safety mobile phone.The mining multifunctional wireless Mesh gateway by the RS485 fieldbus can with equipment two-way communication such as down-hole RFID personnel positioning, by the Industrial Ethernet interface can with the mining network switch of supporting TCP/IP or substation be interconnected and two-way communication.The mining network switch or substation can be connected to the LAN switch of ground Police Command Center and multimedia service server etc. by the downhole optic fiber backbone network.In addition, the mining multifunctional wireless Mesh gateway also can directly carry out radio communication by the passive RF antenna of external 2.4GHz/5.8GHz high-gain and ground or down-hole disaster relief on-site wireless access point.
The fieldbus business datum is linked in the gateway apparatus by the User Defined protocol module, by after multiprotocol conversion and address mapping module and IP agreement and the address mapping module processing, uploads to the Industrial Ethernet network by the RJ45 network interface again.
2.4GHz the ZigBee business datum that ZigBee wireless senser networking and multifunctional wireless Mesh router are uploaded is linked in the gateway apparatus through a RF high-gain passive antenna, after multiprotocol conversion and address mapping module and IP agreement and address mapping module processing, upload to the Industrial Ethernet network by the RJ45 network interface again.
The data of WiFi business datum that the multifunctional wireless Mesh router is uploaded and the transmission of other WiFi terminal equipment are linked in the gateway apparatus by the second high-gain passive antenna, and then handle the fusion that realizes with the Industrial Ethernet network by IP agreement and address mapping module.
Also relate to a kind of energy-saving control system in the control system of a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine that the utility model provides, this energy-saving control system is provided with:
Be used to judge whether to receive the device of ground Police Command Center server WiFi service request;
If receive ground Police Command Center server WiFi service request, then:
Be used for judging whether system is in the device of waking state;
If system is in waking state, then be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If system is not in waking state, then be used to broadcast the device of dormancy the finish command;
Be used to judge whether to be in the device of hard resting state;
If system is in hard resting state, then: the device that is used for the energising of WiFi Mesh system board;
If system is not in hard resting state, then: be used for the device that WiFi intelligence access card enables;
Be used to the device that enters waking state and the waking state sign is set;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If do not receive ground Police Command Center server WiFi service request, then: enter WiFi service inquiry mechanism;
Described WiFi service inquiry mechanism is provided with:
Be used to the device of judging whether the WiFi service inquiry cycle arrives;
If the WiFi service inquiry cycle does not arrive, then: be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If the WiFi service inquiry cycle arrives, then: the device that is used to be provided with WiFi service inquiry request number of times Q=0;
Be used to initiate to inquire about the device of WiFi service request;
Be used to judge whether to receive the device of multimedia service server response;
If receive multimedia service server response, then: be used to judge that request number of times Q is whether greater than the device of K;
If request number of times is not more than K, then: be used to that WiFi service inquiry request number of times Q=Q+1 is set and return the device that the WiFi service request is inquired about in described initiation;
If request number of times is greater than K, then: enter hard dormancy controlling organization;
If receive the response of multimedia service server, then: be used to judge whether wireless Mesh netword exists the device of WiFi business;
If there is the WiFi business in wireless Mesh netword, then: the device that is used for the counter O reset of soft, hard dormancy number of times;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If there is not the WiFi business in wireless Mesh netword, then: be used to judge that soft dormancy number of times is whether greater than the device of N;
If soft dormancy number of times is not more than N, then: enter soft dormancy controlling organization;
If soft dormancy number of times is greater than N, then: enter hard dormancy controlling organization;
Described soft dormancy controlling organization is provided with:
The device that is used to enter soft resting state and soft resting state sign is set;
Be used to broadcast the device of soft sleep command;
Be used for soft dormancy number of times and add 1 device;
Be used to forbid the device of WiFi intelligence access card;
Be used to be provided with soft doze output initial value (T
s) device;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
Described hard dormancy controlling organization is provided with:
The device that is used to enter hard resting state and hard resting state sign is set;
Be used to broadcast the device of hard sleep command;
Be used for hard dormancy number of times and add 1 device;
The device that is used for the outage of WiFi Mesh system board;
Be used to be provided with hard doze output initial value (T
h) device;
Be used to judge that hard dormancy number of times is whether greater than the device of M;
If hard dormancy number of times is not more than M, then: be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If hard dormancy number of times is greater than M, then: the device that is used for the counter O reset of soft, hard dormancy number of times;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request.
Soft, the hard dormancy that the utility model proposes based on the system self-adaption service response combine communication energy-saving control method mainly solve 4 key technical problems: (1) judges in the mining multimedia emergent radio Mesh network whether have the WiFi business; (2) guarantee not influence WiFi terminal or the mining multimedia emergent radio of WiFi service access Mesh network; (3) forbidding of realizing WiFi intelligence access card with enable and the energising and the outage of WiFi Mesh system board; (4) guarantee the system core device enables/disables WiFi intelligence access card and energising/outage WiFiMesh system board simultaneously.
The mining multifunctional wireless Mesh gateway can realize that mining multimedia emergent radio Mesh network and other heterogeneous networks are interconnected, can realize again communicating response alternately with the multimedia service server.Multimedia service server real time monitoring network multimedia service situation, the data, the voice and video multimedia service that take place in the record net.The mining multifunctional wireless Mesh gateway judges in the mining multimedia emergent radio Mesh network whether have the WiFi business by inserting IP network and periodically inquiring about the multimedia service server with this.If there is not the WiFi business, in soft resting state, the mining multifunctional wireless Mesh gateway is then broadcasted soft sleep command by the wireless Mesh netword communications platform based on ZigBee, forbids WiFi intelligence access card then, enters soft resting state.Mining multifunctional Wireless Mesh router is received soft sleep command, forbids WiFi intelligence access card immediately, enters soft resting state.The soft dormancy of system core device or forbidding WiFi intelligence access card time (Ts) are identical, just enable WiFi intelligence access card separately after soft dormancy finishes, and enter normal (regaining consciousness) operating state.In hard resting state, the mining multifunctional wireless Mesh gateway is then broadcasted hard sleep command by the wireless Mesh netword communications platform based on ZigBee, makes WiFi Mesh system board cut off the power supply then, and enters hard resting state.Mining multifunctional Wireless Mesh router makes WiFi Mesh system board cut off the power supply after receiving hard sleep command immediately, enters hard resting state.Hard dormancy of system core device or WiFi Mesh system board power-off time (Th) are identical, just make the WiFiMesh system board switch on again after hard dormancy finishes, and enter normal (regaining consciousness) operating state.
After system core device entered the operating state of normally (regaining consciousness), the WiFi terminal just can be linked in the emergency communication system wireless Mesh netword, and initiated the WiFi service request and finish the professional registration of WiFi to the multimedia service server.During mining multifunctional wireless Mesh gateway inquiry multimedia service server, if there is the WiFi business in the emergency communication system wireless Mesh netword, the mining multifunctional wireless Mesh gateway can not broadcasted sleep command (soft or hard dormancy), system core device will continue to keep normal (regaining consciousness) operating state, not have the WiFi business in the emergency communication system wireless Mesh netword.
When system core device is in soft resting state or hard resting state, if WiFi terminal (as WiFi handset) request inserts the emergency communication system wireless Mesh netword, then must wait for when the dormancy of system core device finishes and enter normal (regaining consciousness) operating state and just can insert.If emergency management and rescue command centre in ground initiates the WiFi business, the multimedia service server can send the WiFi of command centre service request to the mining multifunctional wireless Mesh gateway.After the mining multifunctional wireless Mesh gateway is received the WiFi service request of command centre's initiation, if system core device is in soft resting state or hard resting state, then can make system core device return to the operating state of normally (regaining consciousness) by wireless Mesh netword communications platform broadcasting dormancy the finish command based on ZigBee.
Remarkable result of the present utility model is: a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine and control system thereof are provided, have had following feature:
1. support multimedia services such as down-hole voice and image to carry out the transmission of wireless broadband network multi-hop simultaneously, system has realized inserting and Wireless Mesh route transmission platform based on the multimedia service of multihop network, support WiFi wireless terminals such as sound, video to insert, and the wireless transmission bandwidth theory can reach 54Mbps;
2. realized supporting simultaneously the interface circuit of WiFi wireless Mesh netword and multiple technologies standards such as ZigBee wireless Mesh netword, Industrial Ethernet and fieldbus, multiple heterogeneous networks such as supporting industry Ethernet, RFID/ transducer fieldbus networks and WiFi WLAN (wireless local area network) effectively merge;
3. realized effectively to prolong system and device standby life time and reaching 32% based on ZigBee wireless Mesh netword transmission RFID card reader/hardware platform of spot sensor data and energy-conservation embedded hardware circuit design of controlling by serial ports of WiFi network service;
4. system and device has been realized the quick ad hoc deployed wireless networks of emergency management and rescue communication system, Radio Link self-healing and Wireless Mesh multi-hop route transmission by ZigBee communication module and WiFi Wireless Mesh system board, and maximum can be supported 3 WiFi Mesh wireless extensions interfaces (Mini-PCI) and the highly reliable Wireless Mesh transmission of many RF passage;
5. the system and device back-up system supports apolegamy omnidirectional's high-gain external antenna and disaster area wireless network to cover continuously at two kinds of microwave working frequency range of 2.4GHz/5.8GHz.
6. system and device has realized that big capacity intrinsic safety portable power supplies two-way automaticallyes switch and the essential safety control technology, and the system standby life-span can reach 60～72 hours, and degree of protection can reach more than the IP65, can adapt at abominable disaster environment such as down-hole high humidity and high coal dust to use.
7. support with full mine complex automatic system of multiple series such as KJ90 and Mine Safety in Production multimedia monitor system interconnectedly, support the VOIP voice service and the energy-conserving control technology of communicating by letter based on Session Initiation Protocol.
Description of drawings
Fig. 1 is that circuit structure of the present utility model is formed schematic diagram;
Fig. 2 is a control system model schematic diagram of the present utility model;
Fig. 3 is an energy-saving control system control flow chart in the utility model;
Fig. 4 is a mine multi-media radio Mesh network topological diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1: a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, form by master control system plate 1 and subsystem plate 2, described master control system plate 1 is provided with master controller MCU15, the first serial end UART1 of this master controller MCU 15 is connected with ZigBee communication module 14, the second serial end UART2 of this master controller MCU 15 is connected with the 0th serial ports end COM0 of serial ports expansion module 17, the first serial end COM1 of described serial ports expansion module 17 is converted to field-bus interface through first modular converter 16, the second serial end COM2 of this serial ports expansion module 17 is converted to the RS232 interface through second modular converter 18, the 3rd serial ports end COM3 of this serial ports expansion module 17 is converted into the RJ45 network interface through the 3rd modular converter 19, be connected with power supply input gating module 13 and RJ45 interface gating circuit 19 ' on the described master controller MCU 15, described power supply input gating module 13 is used to control the power supply input on off operating mode of described subsystem plate 2, and described RJ45 interface gating circuit 19 ' is used to control the RJ45 network interface on described the 3rd modular converter 19 and the connection status of Industrial Ethernet interface;
Described subsystem plate 2 is provided with sub-controller CPU 26, this sub-controller CPU 26 is connected with 3 WiFi intelligence access cards 22 through internal bus and Mini pci interface 23, also be connected with subsystem RS232 serial ports 24 on the described internal bus, subsystem RJ45 first network interface 25 and subsystem RJ45 second network interface 25 ', described subsystem RS232 serial ports 24 is connected with the RS232 interface of reaching master control system plate 1, described subsystem RJ45 second network interface 25 ' is connected with the RJ45 interface of described master control system plate 1, and described subsystem RJ45 first network interface 25 is connected with described Industrial Ethernet interface.
In specific implementation process, described master controller MCU 15 adopts 16MHz MCU controller, adopting model is the master chip of MSP 430F249, the master chip that serial ports expansion module 17 adopts is GM8123, first modular converter 16 adopts SP3485, major function is that TTL232 is converted into the RS485 bus interface, second modular converter 18 adopts MAX3232, major function is that TTL232 is converted to the RS232 serial ports, the 3rd modular converter 19 adopts IPORT-1, major function is that TTL232 is converted to the RJ45 interface, described RJ45 interface gating circuit 19 ' mainly adopts integrated chip SN74HC4066, described sub-controller CPU 26 adopts 266MHz high-performance cpu controller, and its chip model is MPC8321.
The RS485 field-bus interface is mainly used in and connects various down-hole RFID (RaidoFrequency Identification, radio-frequency (RF) identification) personnel positioning equipment, the data that the RS485 field-bus interface collects upload in the master controller MCU15 after through first modular converter 16 and serial ports expansion module 17, carry out agreement and data frame format conversion by master controller MCU15, make that at last data can route and transmission in the ZigBee wireless Mesh netword.
The access of the WiFi intelligence access card 22 mining WiFi handsets of support and other WiFi sound, video terminal, the RF of the high-gain omnidirectional antenna of WiFi intelligence access card 22 configuration 2.4GHz or 5.8GHz, RF antenna working frequency range and WiFi intelligence access card 22 working frequency range are consistent, and data wireless transmission theory bandwidth can reach 54Mbps.System can adopt many RF passage respectively to ZigBee wireless Mesh netword data and WiFi wireless Mesh netword data independent transmission, has strengthened the reliability and the anti-electromagnetic interference capability of communicating by letter of system.
Described RJ45 interface gating circuit 19 ' is provided with and enables control port EN1, this enables control port EN1 and is connected with the Energy Saving Control signal output port P1.7 of described master controller MCU 15, a communication interface of described RJ45 interface gating circuit 19 ' is connected with the RJ45 interface of described the 3rd modular converter 19, and another communication interface of this RJ45 interface gating circuit 19 ' is connected with described Industrial Ethernet interface.
Described power supply input gating module 13 is provided with power enable control port EN, this enables control port EN and also is connected with the Energy Saving Control signal output port P1.7 of described master controller MCU 15, and the output of described power supply input gating module 13 is other functional modules power supplies of described subsystem plate 2.
Subsystem RJ45 second network interface 25 ' is connected with the RJ45 interface that the 3rd modular converter 19 in the master control system plate 1 is changed out, subsystem RJ45 second network interface 25 ' is realized bridge joint with subsystem RJ45 first network interface 25 by internal bus, subsystem RJ45 first network interface 25 also is connected with outside Industrial Ethernet network, the RJ45 interface that the 3rd modular converter 19 in the described master control system plate 1 is changed out also passes through RJ45 interface gating circuit 19 ' and is connected with outside Industrial Ethernet interface, if when power supply input gating module 13 made 2 outages of subsystem plate, the RJ45 interface of master control system plate 1 can directly carry out transfer of data by RJ45 gating module 19 ' and Industrial Ethernet network.
On described master control system plate 1, also be provided with portable intrinsic safety electric source processing module 12 of big capacity and master control system power supply processing module 11, on subsystem plate 2, also be provided with subsystem power supply processing module 21, the input of described intrinsic safety electric source processing module 12 is connected with extraneous Portable DC intrinsic safety electric source DC, and the output of this intrinsic safety electric source processing module 12 is connected on the input of described master control system power supply processing module 11 and power supply input gating module 13.The output of described master control system power supply processing module 11 is described master control system plate 1 power supply, the output of described power supply input gating module 13 is connected with the input of described subsystem power supply processing module 21, and the output of this subsystem power supply processing module 21 is other functional module power supply of described subsystem plate 2.
The big portable intrinsic safety electric source processing module 12 of capacity obtains the power supply input from extraneous Portable DC power supply DC after, to carry out intrinsic safety from the power supply of the input in the external world handles, make external direct current power supply in the excursion of 12V～18V, can both keep stable output, thereby guaranteed the operate as normal of each module and system board.Described master control system power supply processing module 11 and subsystem power supply processing module 21 output 3.3V voltage of direct-flow voltage regulation, each functional module that is respectively other is powered.
As shown in Figure 2, the control system of described a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine is mainly finished by software control, except bottom hardware device driver system and embedded real-time operating system, also be provided with wireless Mesh netword gateway control system in the described control system, this wireless Mesh netword gateway control system comprises:
Be arranged on ZigBee protocol module a and 802.15.4 protocol module c in the ZigBee communication module 14, described 802.15.4 protocol module c is used to support that the physical layer of ZigBee wireless Mesh netword inserts, and described ZigBee protocol module a is used to realize ZigBee wireless Mesh netword business datum multi-hop route and transmission;
Be arranged on User Defined protocol module b and multiprotocol conversion and address mapping module d among the master controller MCU 15, described User Defined protocol module b is used to support the physical layer of fieldbus business datum to insert, and described multiprotocol conversion and address mapping module d are used to realize that the protocol frame format of fieldbus business datum and ZigBee wireless Mesh netword business datum changes mutually;
Be arranged on 802.11 protocol module e, 802.3 protocol module f and IP agreement and address mapping module g among the subsystem CPU 26, described 802.11 protocol module e are used to support that the physical layer of WiFi wireless Mesh netword inserts, the physical layer that described 802.3 protocol module f are used for the supporting industry Ethernet inserts, and described IP agreement and address mapping module g are used to realize that WiFi wireless Mesh netword, ZigBee wireless Mesh netword and Industrial Ethernet network business datum network merge.
As shown in Figure 3, also be provided with energy-saving control system in the control system of described a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, this energy-saving control system is provided with:
Be used to judge whether to receive the device of ground Police Command Center server WiFi service request;
If receive ground Police Command Center server WiFi service request, then:
Be used for judging whether system is in the device of waking state;
If system is in waking state, then be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If system is not in waking state, then be used to broadcast the device of dormancy the finish command;
Be used to judge whether to be in the device of hard resting state;
If system is in hard resting state, then: the device that is used for the energising of WiFi Mesh system board;
If system is not in hard resting state, then: be used for the device that WiFi intelligence access card enables;
Be used to the device that enters waking state and the waking state sign is set;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If do not receive ground Police Command Center server WiFi service request, then: enter WiFi service inquiry mechanism;
Described WiFi service inquiry mechanism is provided with:
Be used to the device of judging whether the WiFi service inquiry cycle arrives;
If the WiFi service inquiry cycle does not arrive, then: be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If the WiFi service inquiry cycle arrives, then: the device that is used to be provided with WiFi service inquiry request number of times Q=0;
Be used to initiate to inquire about the device of WiFi service request;
Be used to judge whether to receive the device of multimedia service server response;
If receive multimedia service server response, then: be used to judge that request number of times Q whether greater than the device of K, is provided with K=3 usually;
If request number of times is not more than K, then: be used to that WiFi service inquiry request number of times Q=Q+1 is set and return the device that the WiFi service request is inquired about in described initiation;
If request number of times Q is greater than K, then: enter hard dormancy controlling organization;
If receive the response of multimedia service server, then: be used to judge whether wireless Mesh netword exists the device of WiFi business;
If there is the WiFi business in wireless Mesh netword, then: the device that is used for the counter O reset of soft, hard dormancy number of times;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If there is not the WiFi business in wireless Mesh netword, then: be used to judge that soft dormancy number of times is whether greater than the device of N;
If soft dormancy number of times is not more than N, then: enter soft dormancy controlling organization;
If soft dormancy number of times is greater than N, then: enter hard dormancy controlling organization;
Described soft dormancy controlling organization is provided with:
The device that is used to enter soft resting state and soft resting state sign is set;
Be used to broadcast the device of soft sleep command;
Be used for soft dormancy number of times and add 1 device;
Be used to forbid the device of WiFi intelligence access card;
Be used to be provided with soft doze output initial value (T
s) device;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
Described hard dormancy controlling organization is provided with:
The device that is used to enter hard resting state and hard resting state sign is set;
Be used to broadcast the device of hard sleep command;
Be used for hard dormancy number of times and add 1 device;
The device that is used for the outage of WiFi Mesh system board;
Be used to be provided with hard doze output initial value (T
h) device;
Be used to judge that hard dormancy number of times is whether greater than the device of M;
If hard dormancy number of times is not more than M, then: be used to return the device that judges whether to receive ground Police Command Center server WiFi service request;
If hard dormancy number of times is greater than M, then: the device that is used for the counter O reset of soft, hard dormancy number of times;
Be used to return the device that judges whether to receive ground Police Command Center server WiFi service request.
Operation principle of the present utility model is:
As shown in Figure 4, the mining wireless Mesh netword of common composition such as multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine described in the utility model and multifunctional wireless Mesh route device and terminal equipment thereof, because multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine has interface circuit and the treatment system of supporting various protocols, so on multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, can connect multiple mining communication equipment, comprise the mine intrinsic safety mobile phone, mining video and IMAQ terminal, mining multifunctional Wireless Mesh router, 2.4GHz ZigBee sensor terminal and down-hole RFID personnel positioning equipment etc.
Multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine is connected with the mining network switch or substation by the TCP/IP network, the mining network switch or substation are connected with the ground LAN switch through the downhole optic fiber backbone network, the ground LAN switch is provided with multimedia service server and wireless access point AP, and described wireless access point AP can also be carried out intercommunication by Radio Link and described multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine.
In actual applications, the traffic data type mainly handled of described multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine and control system thereof has: WiFi wireless Mesh netword business datum, Industrial Ethernet network business datum, ZigBee wireless Mesh netword business datum and fieldbus business datum.
Various parameter requests according to 802.15.4 protocol module c regulation are configured the ZigBee communication module, make the ZigBee sensor terminal insert in the multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine through first RF of the high-gain omnidirectional antenna wireless, the data that described ZigBee sensor terminal sends are ZigBee wireless Mesh netword business datum, after handling, process ZigBee protocol module a can realize the multi-hop route, data after ZigBee protocol module a handles also can be through being converted to IP protocol data bag after multi-protocols and the address mapping module d processing, IP protocol data bag can be connected with the Industrial Ethernet network by RJ45 interface gating circuit after through the 3rd modular converter 19, also can be transferred in the subsystem 2 by subsystem RJ second network interface 25 ', processing by IP agreement among the sub-controller CPU 26 and address mapping module g, be connected with the Industrial Ethernet network by subsystem RJ45 first network interface 25 at last, or be connected with the external wireless LAN by WiFi intelligence access card 22, realized the transfer of data of network.
In like manner, after the processing of the data that down-hole RFID personnel positioning equipment transmits through User Defined protocol module b → multiprotocol conversion and address mapping module d → IP agreement and address mapping module g → 802.3 protocol module f, be sent in the mining network switch according to the ICP/IP protocol standard.Also can be through the data after IP agreement and the address mapping module g processing by the processing of 802.11 protocol module e, networking model with WLAN (wireless local area network) WLAN is sent on the terrestrial wireless access point AP at last, finally is connected with ground LAN switch and multimedia server.
The processing of WiFi Mesh Network data mainly can be finished by subsystem plate 2.Described mine intrinsic safety mobile phone, mining video and IMAQ terminal and mining multifunctional Wireless Mesh router are realized inserting with the physical layer of described mining multifunctional wireless Mesh gateway device through 802.11 protocol module e, after the processing of the data that various terminal equipments or routing device transmit through IP agreement and address mapping module g, can be linked in the on-the-spot Industrial Ethernet network by 802.3 protocol module f, the processing mode of various data and the technology such as frame structure of transfer of data are quite ripe in this area, as the one of ordinary skilled in the art should be common practise, does not just state tired here.
Described energy-saving control system then is according to service condition in the network operating state of system to be carried out real-time control, and main definition has soft resting state, hard resting state and waking state in system.Described multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine inquires about whether there is the WiFi service request in the wireless Mesh netword in real time by the multimedia service server that inserts in IP network.
At first be to judge whether to exist ground Police Command Center server WiFi service request, if gateway apparatus is received ground Police Command Center server WiFi service request, then check and judge whether to be in clear-headed operating state, if be in waking state, then whole network is to the corresponding business data processing, and energy-saving control system needn't carry out power-save operation.If the gateway apparatus in the network and lower floor's route device are not in waking state, then gateway apparatus will be by ZigBee Mesh Web broadcast dormancy the finish command, when route device is received dormancy the finish command, then return to waking state from soft resting state or hard resting state automatically, if be in hard resting state, then make the energising of WiFi Mesh system board, if soft resting state, WiFi intelligence access card is enabled, return to waking state at last and corresponding Status Flag is set.
Be provided with the polling cycle of WiFi business in the described multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, if do not receive ground Police Command Center server WiFi service request, gateway apparatus then carries out the periodic traffic inquiry to Mesh route or bottom WiFi terminal, in query script, gateway apparatus at first sends inquiry WiFi service request to multimedia server, multimedia server will respond after receiving the request of WiFi service inquiry, if receiving WiFi service inquiry request responding, gateway apparatus can judge whether there is the WiFi business in the wireless Mesh netword, if do not receive WiFi service inquiry request response, gateway apparatus then continues to send inquiry WiFi service request, repeatedly inquiry response not yet, gateway apparatus then directly enters hard resting state, and operated by rotary motion query requests maximum times K is 3.
If receive the response of multimedia service server, and there is the WiFi business in the Wireless Mesh network, then gateway apparatus is with the counter O reset of soft, hard dormancy number of times, and energy-saving control system does not carry out power-save operation, gets back to the business datum in the waking state normal process network.
If receive the response of multimedia service server, but do not have the WiFi business in the Wireless Mesh network, whether the number of times of then judging soft dormancy is greater than N, N is set equals 3, if do not have the WiFi business in continuous-query to the 3 time Wireless Mesh network, then enter hard resting state, if there are not 3 times, then enter soft resting state, broadcast soft sleep command, and soft dormancy number of times is added 1, under soft resting state, gateway is forbidden the access of WiFi smart card, and is provided with the timing T of soft dormancy
s, generally be made as 10 seconds.
According to above-mentioned various estimate of situations, if system enters hard resting state, then gateway apparatus is broadcasted hard sleep command, and hard dormancy number of times is added 1, master controller MCU15 in the described gateway apparatus makes and 2 outages of WiFi Mesh system board also is provided with hard dormancy timing T simultaneously
h, be generally 60 seconds.
In the hard dormancy timing process, master controller MCU 15 judges that hard dormancy number of times whether greater than M time, generally establishes M=3, if greater than 3 times, then with the counter O reset of soft, hard dormancy number of times.Allow Energy Saving Control again from newly.
It all is to turn back in the judgement flow process of whether receiving ground Police Command Center server WiFi service request to the end that all above-mentioned flow processs are walked, thereby realizes the major cycle process of energy-saving control system.
In the process of soft dormancy or hard dormancy, master control MCU 15 can real-time monitor the WiFi service request that passes under the ground command center, and gateway apparatus in the resting state and route device can be waken up to waking state, but under the state of dormancy, various WiFi terminal equipment requests insert the emergency communication system wireless Mesh networds, then must wait for when the dormancy of system core device finishes and enter normal (regaining consciousness) operating state and just can insert.
Because system is periodically inquired about the WiFi business in the wireless Mesh netword, thus according to network service condition, what system can not stop freely switches under each state, by coming and going like this circulation, finally reaches the communication energy-saving effect.Proof adopts energy-saving control system described in the utility model can make described many RF multifunctional wireless Mesh gateway device standby life time prolong and can reach 32% by experiment.
Claims (6)
1. a multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine is made up of master control system plate (1) and subsystem plate (2), it is characterized in that:
Described master control system plate (1) is provided with master controller MCU (15), the first serial end (UART1) of this master controller MCU (15) is connected with ZigBee communication module (14), the second serial end (UART2) of this master controller MCU (15) is connected with the 0th serial ports end (COM0) of serial ports expansion module (17), the first serial end (COM1) of described serial ports expansion module (17) is connected with first modular converter (16), the output port of this first modular converter (16) is a field-bus interface, the second serial end (COM2) of described serial ports expansion module (17) is connected with second modular converter (18), the output port of this second modular converter (18) is the RS232 interface, the 3rd serial ports end (COM3) of described serial ports expansion module (17) is connected with the 3rd modular converter (19), the output port of the 3rd modular converter (19) is the RJ45 network interface, be connected with power supply input gating module (13) and RJ45 interface gating circuit (19 ') on the described master controller MCU (15), the output of described power supply input gating module (13) is described subsystem plate (2) power supply, and described RJ45 interface gating circuit (19 ') is used to control the connection status of the output port and the Industrial Ethernet interface of described the 3rd modular converter (19);
Described subsystem plate (2) is provided with sub-controller CPU (26), this sub-controller CPU (26) is connected with at least one WiFi intelligence access card (22) through internal bus, also be connected with subsystem RS232 serial ports (24) on the described internal bus, subsystem RJ45 first network interface (25) and subsystem RJ45 second network interface (25 '), described subsystem RS232 serial ports (24) is connected with the RS232 interface of described master control system plate (1), described subsystem RJ45 second network interface (25 ') is connected with the RJ45 interface of described master control system plate (1), and described subsystem RJ45 first network interface (25) is connected with described Industrial Ethernet interface.
2. a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine according to claim 1, it is characterized in that: described RJ45 interface gating circuit (19 ') is provided with and enables control port (EN1), this enables control port (EN1) and is connected with the Energy Saving Control signal output port (P1.7) of described master controller MCU (15), a communication interface of described RJ45 interface gating circuit (19 ') is connected with the RJ45 interface of described the 3rd modular converter (19), and another communication interface of this RJ45 interface gating circuit (19 ') is connected with described Industrial Ethernet interface.
3. a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine according to claim 1, it is characterized in that: described power supply input gating module (13) is provided with power enable control port (EN), this enables control port (EN) and is connected with the Energy Saving Control signal output port (P1.7) of described master controller MCU (15), and the output of described power supply input gating module (13) is described subsystem plate (2) power supply.
4. according to claim 1 or 3 described a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine, it is characterized in that: on described master control system plate (1), also be provided with portable intrinsic safety electric source processing module of big capacity (12) and master control system power supply processing module (11), on subsystem plate (2), also be provided with subsystem power supply processing module (21), the input of described intrinsic safety electric source processing module (12) is connected with extraneous Portable DC intrinsic safety electric source (DC), the output of this intrinsic safety electric source processing module (12) is connected on the input of described master control system power supply processing module (11) and power supply input gating module (13), the output of described master control system power supply processing module (11) is described master control system plate (1) power supply, the output of described power supply input gating module (13) is connected with the input of described subsystem power supply processing module (21), and the output of this subsystem power supply processing module (21) is other functional module power supply of described subsystem plate (2).
5. a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine according to claim 1, it is characterized in that: be connected with 3 Mini-PCI interfaces (23) on the internal bus of described subsystem plate (2), described WiFi intelligence access card (22) of each described Mini-PCI interface (23) grafting.
6. a kind of multifunctional wireless Mesh gateway device for multi-RF (Radio Frequency) mine according to claim 1 is characterized in that: described ZigBee communication module (14) is circumscribed with first RF of the high-gain omnidirectional antenna, and its working frequency range is 2.4GHz; Described WiFi intelligence access card (22) is circumscribed with second RF of the high-gain omnidirectional antenna, and its working frequency range is 2.4GHz or 5.8GHz.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102968754A (en) * | 2012-11-26 | 2013-03-13 | 中国联合网络通信集团有限公司 | Method and equipment for establishing electronic medical record information |
| CN108039035A (en) * | 2017-12-19 | 2018-05-15 | 安徽容知日新科技股份有限公司 | A kind of wireless monitoring device of mechanical equipment and monitoring system |
| CN109195108A (en) * | 2018-11-05 | 2019-01-11 | 郑州煤机液压电控有限公司 | Coal mine fully-mechanized mining working personnel's Precise Position System |
| CN112954825A (en) * | 2021-01-29 | 2021-06-11 | 徐州科瑞矿业科技有限公司 | Wireless multi-band data through ad hoc network fusion communication device and method |
| CN118138391A (en) * | 2024-05-08 | 2024-06-04 | 青岛国创智能家电研究院有限公司 | Cross-domain wireless control data conversion method, device, equipment and storage medium |
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2010
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968754A (en) * | 2012-11-26 | 2013-03-13 | 中国联合网络通信集团有限公司 | Method and equipment for establishing electronic medical record information |
| CN102968754B (en) * | 2012-11-26 | 2016-08-03 | 中国联合网络通信集团有限公司 | Electronic health record information creation method and equipment |
| CN108039035A (en) * | 2017-12-19 | 2018-05-15 | 安徽容知日新科技股份有限公司 | A kind of wireless monitoring device of mechanical equipment and monitoring system |
| CN109195108A (en) * | 2018-11-05 | 2019-01-11 | 郑州煤机液压电控有限公司 | Coal mine fully-mechanized mining working personnel's Precise Position System |
| CN112954825A (en) * | 2021-01-29 | 2021-06-11 | 徐州科瑞矿业科技有限公司 | Wireless multi-band data through ad hoc network fusion communication device and method |
| CN118138391A (en) * | 2024-05-08 | 2024-06-04 | 青岛国创智能家电研究院有限公司 | Cross-domain wireless control data conversion method, device, equipment and storage medium |
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