Embodiment
Be provided with the wireless wide area network communication apparatus in the wireless monitoring-alarming system that the utility model embodiment provides, this equipment can send the intelligence sensor node that receives by WLAN (wireless local area network) monitoring or alert data, (for example send to the monitoring, alarming management server by wide area network, the wireless wide area network communication apparatus can be to the GSM network, base station in the wireless private network of cdma network or laying sends packet, carry the address of monitoring, alarming management server in the packet, after the related network elements route of this packet in wireless wide area network, be sent to the monitoring, alarming management server.Like this, the wireless wide area network communication apparatus that is arranged at zones of different can report monitoring or alert data to the monitoring, alarming management server, thereby the monitoring, alarming management server can be realized trans-regional, large-scale environment is carried out the management of monitoring, alarming.
Describe concrete technical scheme of the present utility model in detail below in conjunction with accompanying drawing.
Shown in Fig. 2 a, a kind of wireless monitoring-alarming system that the utility model embodiment provides comprises: a plurality of intelligence sensor nodes 201, wireless wide area network communication apparatus 202 and monitoring, alarming management server 203.
Wherein, intelligence sensor node 201 is connected by having radio communication between WLAN (wireless local area network) and the wireless wide area network communication apparatus 202, can adopt agreements such as sMAC, IEEE802.15.4 or ZigBee to carry out communication in the WLAN (wireless local area network).
A plurality of intelligence sensor nodes 201 can be arranged at different places, can be used for monitoring and comprise physical quantitys such as temperature, humidity, smog, fuel gas, toxic gas, wind speed, vibrations, infrared, image, fire, motion, speed; Intelligence sensor node 201 can be with the measurement data of the monitored target that obtains, after perhaps the warning message that generates according to measurement data is packaged into packet, sends to wireless wide area network communication apparatus 202 by WLAN (wireless local area network); And the sign of in the packet that sends, carrying this intelligence sensor node.
All be assigned unique sign for each intelligence sensor node in wireless monitoring-alarming system, the packet recipient can confirm this packet by which intelligence sensor node is sent according to the intelligence sensor node sign of carrying in the packet.
Wireless wide area network communication apparatus 202 is transmitted to monitoring, alarming management server 203 by wide area network behind the packet that receives intelligence sensor node 201 transmissions.Wireless wide area network communication apparatus 202 communicates to connect by having between wireless wide area network and the monitoring, alarming management server 20; Specifically can be, wireless wide area network communication apparatus 202 is by the base station in the private network of GSM network or cdma network or laying, transmit packet to monitoring, alarming management server 203, in the packet of transmitting, carry sign, such as being to transmit to wireless wide area network behind the IP packet with the packet encapsulation that receives according to the IP address of monitoring, alarming management server 203 according to monitoring, alarming management server 203.Like this, the router in the wide area network etc. can send to monitoring, alarming management server 203 with packet according to recipient's sign (being the sign of monitoring, alarming management server 203) that packet carries.
Monitoring, alarming management server 203 is after receiving the packet of wireless wide area network communication apparatus 202 by the wide area network forwarding, sign according to the intelligence sensor node that carries in the packet, can determine it is which intelligence sensor node sends, thereby measurement data or warning message that corresponding intelligence sensor node sends are handled, such as showing, reporting to the police, perhaps send notice etc.
Intelligence sensor node 201 by WLAN (wireless local area network) before wireless wide area network communication apparatus 202 sends packets, the detailed process that intelligence sensor node 201 joins WLAN (wireless local area network) is:
Intelligence sensor node 201 sends the networking request signal in the back that powers on, and enters the wait accepting state.Wireless wide area network communication apparatus 202 is if receive the networking request signal that intelligence sensor node 201 sends, then echo reply signal.
After intelligence sensor node 201 receives the answer signal that wireless wide area network communication apparatus 202 returns, confirm that wireless wide area network communication apparatus 202 can receive the signal of this intelligence sensor node, so send confirmation to wireless wide area network communication apparatus 202, confirm that to show this intelligence sensor node will join in the WLAN (wireless local area network).
Wireless wide area network communication apparatus 202 confirms that according to the affirmation information that intelligence sensor node 201 sends this intelligence sensor node successfully joins described WLAN (wireless local area network).Like this, wireless wide area network communication apparatus 202 can receive or to intelligence sensor node 201 transmission information.
Further, wireless wide area network communication apparatus 202 is in order to guarantee the getting in touch of intelligence sensor node 201 in itself and the WLAN (wireless local area network), and wireless wide area network communication apparatus 202 regularly sends cues, such as sent a cue every 20 seconds.
If the intelligence sensor node 201 in the WLAN (wireless local area network) can receive the cue that wireless wide area network communication apparatus 202 sends every setting-up time, show that net connection is in good condition; Also do not receive and then show next time cue to disconnect intelligence sensor node 201 and being connected of WLAN (wireless local area network) if surpassed setting-up time, need to network again.Then intelligence sensor node 201 resends the networking request signal, and going into network process can repeat no more as previously mentioned herein.
Further, in order to make intelligence sensor node 201 in larger scope all can join in the WLAN (wireless local area network), and needn't lay too much wireless wide area network communication apparatus, then can be specially so that intelligence sensor node 201 also has relay function (shown in Fig. 2 b):
Suppose that intelligence sensor node A has joined WLAN (wireless local area network), if receive the networking request signal that intelligence sensor node B sends, then to intelligence sensor node B echo reply signal; If receive the affirmation information that intelligence sensor node B sends, then intelligence sensor node A confirms successfully to join intelligence sensor node B in the WLAN (wireless local area network); Intelligence sensor node A can receive the packet that intelligence sensor node B sends and transmits to wireless wide area network communication apparatus 202 afterwards, by wide area network the packet of intelligence sensor node B is sent to monitoring, alarming management server 203 by wireless wide area network communication apparatus 202.
Intelligence sensor node A can also regularly send cue; If intelligence sensor node B can receive the cue that intelligence sensor node A sends every setting-up time, show that net connection is in good condition; Also do not receive and then show next time cue to disconnect intelligence sensor node B and being connected of WLAN (wireless local area network) if surpassed setting-up time, need to network again.Then intelligence sensor node B resends the networking request signal.
In addition, in wireless monitoring-alarming system, can also lay special trunking---wireless repeater 204, in order to relaying, transmit to wireless wide area network communication apparatus 202 after receiving the packet that their send as near the intelligence sensor node it.
The process that wireless repeater 204 joins WLAN (wireless local area network) also can to go into network process identical with the intelligence sensor node of above-mentioned introduction:
Wireless repeater 204 sends the networking request signals, and after receiving the answer signal that wireless wide area network communication apparatus 202 returns, sends confirmations to wireless wide area network communication apparatus 202;
The affirmation information that wireless wide area network communication apparatus 202 sends according to wireless repeater 204, confirm that this wireless repeater successfully joins described WLAN (wireless local area network), promptly wireless repeater 204 is connected by having set up radio communication between WLAN (wireless local area network) and the wireless wide area network communication apparatus 202.
After wireless repeater 204 joins WLAN (wireless local area network), other intelligence sensor node then can join WLAN (wireless local area network) by wireless repeater 204, be that other intelligence sensor node also can be set up radio communication with wireless repeater 204 by WLAN (wireless local area network) and is connected: after supposing that intelligence sensor node C sends the networking request signal, receive the answer signal that wireless repeater 204 returns, and to wireless repeater 204 transmission confirmations, then wireless repeater 204 confirms that this intelligence sensor node C successfully joins described WLAN (wireless local area network), and the packet that can receive intelligence sensor node C transmission is afterwards transmitted to wireless wide area network communication apparatus 202.
So, in wireless monitoring-alarming system, if an intelligence sensor node has sent the networking request signal, then might receive the answer signal that wireless wide area network communication apparatus, wireless repeater or other intelligence sensor node return: after supposing that intelligence sensor node D sends the networking request signal, received the answer signal that wireless wide area network communication apparatus, wireless repeater and other intelligence sensor node return; Then intelligence sensor node D is according to priority preset, selects the high equipment of priority to be linked into the trunking of WLAN (wireless local area network) as this intelligence sensor node, promptly sends confirmation to the high equipment of priority; The recipient of this confirmation, affirmation information according to intelligence sensor node C transmission, confirm that this intelligence sensor node C successfully joins described WLAN (wireless local area network), the packet that can receive intelligence sensor node C transmission is afterwards transmitted to wireless wide area network communication apparatus 202.
Above-mentioned priority can have multiple method to set up, and those skilled in the art can be provided with as the case may be.For example can different priority facilities be set as table 1 for different equipment:
Table 1
Equipment |
Priority facility |
The wireless wide area network communication apparatus |
High |
Wireless repeater |
In |
Intelligence sensor node |
Low |
For the priority height that then determines which equipment with a kind of equipment according to following method:
Suppose that intelligence sensor node D receives the answer signal of several intelligence sensor node/wireless repeaters simultaneously, then determine the priority of corresponding intelligence sensor node/wireless repeater according to the answer signal quality, be that the answer signal quality is high more, then the priority of Dui Ying intelligence sensor node/wireless repeater is high more.
Perhaps, determine the priority of corresponding intelligence sensor node/wireless repeater according to the number of the relaying relation set up of carrying in the answer signal, promptly relaying concerns that number is few more, and then the priority of Dui Ying intelligence sensor node/wireless repeater is high more.
Perhaps, take all factors into consideration answer signal quality and the number of having set up the relaying relation and determine the priority of corresponding intelligence sensor node/wireless repeater: set up the big more person of product of the number that relaying concerns in answer signal quality and the answer signal, its priority is high more.
In addition, in wireless monitoring-alarming system, intelligent control node 205 can also be set.The process that intelligent control node 205 joins WLAN (wireless local area network) is identical with intelligence sensor node 201, repeats no more herein.At measurement data or the warning message that monitoring, alarming management server 203 reports according to each intelligence sensor node 201, can pass through wide area network, wireless wide area network communication apparatus 202, WLAN (wireless local area network) to intelligent control node 205 sending controling instructions.Be specially, monitoring, alarming management server 203 carries the sign of intelligent control node to corresponding wireless wide area network communication apparatus 202 sending controling instructions in the instruction.For the situation that has a plurality of wireless wide area network communication apparatus 202 in the system, each wireless wide area network communication apparatus 202 all has unique sign (for example IP address or IMSI number), then monitoring, alarming management server 203 can be encapsulated in control command and send to corresponding wireless wide area network communication apparatus 202 in the IP packet, by wireless wide area network communication apparatus 202 control command is transmitted to corresponding intelligent control node again, intelligent control node is carried out corresponding operating according to the control command that receives.For example, according to the instruction of On/Off blower fan, perhaps instruction of on/off power supply etc., intelligent control node 205 can be controlled the blower fan of this locality, power supply etc.For example, the concentration of toxic gases Monitoring Data that analyzes certain intelligence sensor node transmission when monitoring, alarming management server 203 surpasses set point, perhaps this intelligence sensor node has sent the concentration of toxic gases warning message, then can send the instruction of opening blower fan to corresponding intelligent control node, this intelligent control node is opened blower fan according to the instruction that receives, thereby disperses toxic gas.
Obviously, in wireless monitoring-alarming system, can a plurality of wireless wide area network communication apparatus 202 be set in zones of different, and each wireless wide area network communication apparatus 202 can be communicated by letter with several intelligence sensor nodes 201, thereby monitoring, alarming management server 203, wireless wide area network communication apparatus 202 and intelligence sensor node 201 have constituted hierarchical structure, and utilize wide area network, make monitoring, alarming management server 203 can realize trans-regional, large-scale environment is carried out the management of monitoring, alarming.
A kind of concrete structure of above-mentioned intelligence sensor node 201 can comprise as shown in Figure 3: sensor unit 301, processing unit 302, WLAN communication unit 303 and power subsystem 304, network control unit 305.
Power subsystem 304 is sensor unit 301, processing unit 302, WLAN communication unit 303 and network control unit 305 power supplies.Power supply can be according to actual needs, and the mode that adopts civil power, battery and solar cell to combine is to guarantee its non-stop run.
Sensor unit 301 is used to gather the measurement data of monitored target, such as the data of collecting temperature, humidity, certain gas concentration.Be specially, the transducer in the sensor unit 301 be converted to digital signal by analog to digital converter (ADC) and send to processing unit 302, thereby processing unit 302 can obtain measurement data after converting monitoring target measured to the signal of telecommunication; Perhaps, after transducer in the sensor unit 301 converts monitoring target measured to the signal of telecommunication, the voltage of setting with comparator compares, and the comparative result that comparator is exported is input to processing unit 302, thereby processing unit 302 can obtain warning message.
Processing unit 302 obtains the measurement data of sensor unit 301 collections or the warning message of generation, and generates packet according to measurement data or warning message, carries the sign of this intelligence sensor node in packet.
Processing unit 302 sends to WLAN communication unit 303 with packet, is sent to wireless wide area network communication apparatus 202 by WLAN (wireless local area network) by WLAN communication unit 303.The communication protocol of WLAN communication unit 303 can adopt agreements such as sMAC, IEEE802.15.4 or ZigBee.
Before WLAN communication unit 303 sent packet, network control unit 305 joined WLAN (wireless local area network) by WLAN communication unit 303:
The first network control subelement in the network control unit 305 links to each other with processing unit 302 and WLAN communication unit 303, the first network control subelement sends the networking request signal by WLAN communication unit 303, and enters the wait accepting state; If receive answer signal, then the transmit leg to answer signal sends confirmation, confirms that to show this intelligence sensor node will join in the WLAN (wireless local area network).
If the first network control subelement receives a plurality of answer signals, then judge that according to above-mentioned said method sender's the priority of which answer signal is the highest, send confirmation to the answer signal sender of high priority.The decision method of priority is introduced in detail aforementioned, repeats no more herein.
After the first network control subelement sends confirmation, show to join in the WLAN (wireless local area network), then send notice to processing unit 302 dateout bags.
Processing unit 302 regularly sends packets by WLAN communication unit 303 after receiving packet transmission notice.
The first network control subelement regularly detects whether receive cue by WLAN communication unit 303; If do not have, show that the network connection has disconnected, need again by WLAN communication unit 303 send the networking request signals (such as, the every 10s of cue sends once, do not receive next cue if surpass 10s, show that the network connection has disconnected, need to send the networking request signals by WLAN communication unit 303 again).If in the setting-up time section (such as 30 minutes), still do not join WLAN (wireless local area network) again, then the first network control subelement of network control unit 305 can be reported to the police notifier processes unit 302, specifically can employing sound, type of alarm such as light, thereby further improve the reliability of system and intelligence sensor node.
Network control unit 305 also can be used for relay function: the second network control subelement of network control unit 305 links to each other with WLAN communication unit 303, after the second network control subelement receives the networking request signal by WLAN communication unit 303, the echo reply signal; And when receiving the confirmation information, confirm that this confirmation sender joins WLAN (wireless local area network) by WLAN communication unit 303; Can transmit the packet that this confirmation sender sends over to the upper level (for example wireless wide area network communication apparatus 202 or wireless repeater 204 or other intelligence sensor node) of this intelligence sensor node by WLAN communication unit 303 afterwards.
The second network control subelement of network control unit 305 also can be used for regularly sending cue, as the regular contact information of its relay object.
A kind of concrete structure of above-mentioned wireless wide area network communication apparatus 202 can comprise as shown in Figure 4: processing unit 401, WLAN communication unit 402, wireless wide area network communication unit 403 and power subsystem 404.
Power subsystem 404 usefulness are thought processing unit 401, WLAN communication unit 402,403 power supplies of wireless wide area network communication unit.
Processing unit 401 is transmitted this packet by the base station of wireless wide area network communication unit 403 in the private network of GSM network or cdma network or laying receive the packet of intelligence sensor node 201 by the WLAN (wireless local area network) transmission by WLAN communication unit 402 after.
Processing unit 401 specifically is used for after receiving the networking request signal by WLAN communication unit 402, the echo reply signal; And when receiving the confirmation information, confirm that this confirmation sender joins WLAN (wireless local area network); Can transmit the packet that this confirmation sender sends over afterwards.
Processing unit 401 also is used for regularly sending cue.
The wireless monitoring-alarming system of the utility model embodiment is because the wireless wide area network communication apparatus can receive monitoring or the warning message that intelligence sensor node sends by WLAN (wireless local area network), and transmit to the monitoring, alarming management server base station of passing through wireless wide area network, like this, the monitoring, alarming management server can in time obtain monitoring or the warning message that trans-regional, large-scale wireless wide area network communication apparatus is transmitted by wireless wide area network, realizes trans-regional, large-scale environment is carried out monitoring, alarming.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
Will also be appreciated that the apparatus structure shown in accompanying drawing or the embodiment only is schematically, the presentation logic structure.Wherein the module that shows as separating component may or may not be physically to separate, and the parts that show as module may be or may not be physical modules.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.