CN103997436A - Link maintaining method and gateway in internet of things of elevator - Google Patents
Link maintaining method and gateway in internet of things of elevator Download PDFInfo
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- CN103997436A CN103997436A CN201410226544.XA CN201410226544A CN103997436A CN 103997436 A CN103997436 A CN 103997436A CN 201410226544 A CN201410226544 A CN 201410226544A CN 103997436 A CN103997436 A CN 103997436A
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Abstract
The invention relates to the field of internet of things of an elevator, and discloses a link maintaining method and a gateway in the internet of things of the elevator. When no data are transmitted in a network for a long time, a connecting link without data interaction can be kept connected, long connection of the link in the network is maintained and the network is kept alive. The method includes the steps that registration packets are sent to a server; if feedback information, sent by the server, of the received registration packets is received, heartbeat packets are sent to the server periodically so that the link can be maintained, wherein the sending period is T1, and T1 is a number larger than 0; if data sent by the server are received or data sent by all nodes in a local area network are received within T1, the heartbeat packets are stopped to be sent. The method is used for link maintaining between access network equipment and the server in the internet of things of the elevator.
Description
Technical field
The present invention relates to elevator Internet of Things field, particularly link keeping method and the gateway in a kind of elevator Internet of Things.
Background technology
Existing elevator Internet of Things, the structure of employing is a node of the corresponding connection of an electric life controller, each node connects a set of log equipment and server by repeater and gateway, and communicates with server, as shown in Figure 1.In network, if there is no for a long time data interaction between server and log equipment, the Virtual network operator that log equipment is supported by log equipment in the connection meeting of server end initiatively disconnects.Virtual network operator does not allow to occur there is no for a long time the connection suspension of communication on network.During this time, if while needing to transmit data, need again to re-establish link between this log equipment and server, can cause like this delay of Internet Transmission, reduce network transmission efficiency.In addition,, if what fault appears in certain intermediate node in whole network, server is difficult to know in the very first time.
In addition, also clearly, networking cost is higher for the drawback of this network configuration, elevator of every increase needs to increase in addition a log equipment, because this log equipment is integrated collection and remote wireless transmission function, price comparison is expensive, has therefore also limited the extended capability of network.In addition, the service data of every elevator is transferred to respectively server by corresponding node and log equipment, if elevator quantity is too much, this communication mode can make the load of server suddenly increase; In addition, because the service data of every elevator is transmitted respectively, the volume of transmitted data between from node to server is larger, and network traffics cost also can increase thereupon.
Summary of the invention
The object of the present invention is to provide link keeping method and gateway in a kind of elevator Internet of Things; in the time of can occurring in network that a very long time does not all have the situation of data contact; keep not having the connecting link of data interaction not open circuit, maintain the long of link in network and connect, keep-alive network.
For solving the problems of the technologies described above, embodiments of the present invention provide the link keeping method in a kind of elevator Internet of Things, are applied to gateway, comprising:
To server, send registration packet;
If receive the feedback message that receives described registration packet that described server sends, periodically to described server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1, described T1 is greater than 0 number;
If in described T1, receive the data of described server transmission or receive the data that in local area network (LAN), each node sends, stop sending described heartbeat packet.
Embodiments of the present invention also provide a kind of gateway, comprise and send registration packet module, receiver module, transmission heartbeat packet module and judge module; Wherein, described transmission registration packet module is for sending registration packet to server;
Described transmission heartbeat packet module at described receiver module, do not receive that described server sends receive the feedback message of described registration packet time, periodically to described server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1, and described T1 is greater than 0 number;
Described judge module, in described T1, judges whether described gateway receives the data of described server transmission or judge whether described gateway receives the data that in local area network (LAN), each node sends;
Described transmission heartbeat packet module also when judging that at described judge module described gateway receives the data that described server sends or judges that described gateway receives the data that each node of local area network (LAN) sends, stops sending described heartbeat packet.
Embodiment of the present invention in terms of existing technologies, when the link between log equipment and server disconnects, gateway periodically sends registration packet to server, this registration packet comprises the physical address of this gateway or the unique identification of this gateway, the physical address of this gateway or the unique identification of this gateway are for the identity of identification gateway when server receives this registration packet, by this physical address or unique identification, server just knows that the communication link between the gateway corresponding with this physical address or unique identification is connecting, server is after receiving the registration packet of gateway transmission, can to gateway send one it receive the feedback message of registration packet, gateway is after receiving the feedback message of server transmission, continue periodically to send heartbeat packet to server, forever to keep the link between log equipment and server not open circuit, maintaining the long of link in network connects, keep-alive network.When server need to send order to gateway, can allow gateway receive in real time this order, without network delay phenomenon, indirectly improved network transmission speed.
Preferably, if do not receive the feedback message that receives described registration packet that described server sends, continuation execution is described periodically sends registration packet to described server, and the transmission cycle is T2, and described T2 is the number that is less than described T1.
If the registration packet that server sends gateway within a period of time does not all have feedback; illustrate that gateway has the link between packet loss or gateway and server likely to occur problem; if server is feedback never; illustrate that network exists the abnormal situation of connection, the prompting that can send Network Abnormal or connection error.
Preferably, described, before server transmission registration packet, described method also comprises:
Utilize preset algorithm to process the physical address of described gateway, generate the unique identification of described gateway.
This unique identification is for the identity of identification gateway when server receives registration packet, and by this unique identification, server just knows that the communication link between the gateway corresponding with this unique identification is connecting.
Preferably, described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server, and described local area network (LAN) comprises a plurality of electric life controllers, a plurality of node, a plurality of repeater, a described gateway and a log equipment;
Wherein, described electric life controller and a corresponding connection of described node, at least two described nodes are connected with described log equipment by a described gateway, and described in each, node is connected with described gateway by repeater described at least one, and described log equipment is connected with described server;
The elevator service data that described node collects the electric life controller being attached thereto sends to the repeater being connected with described node, described repeater sends to described gateway by described elevator service data, and this gateway sends to described server by the described elevator service data receiving by described log equipment again.
The elevator service data that a plurality of nodes collect each electric life controller corresponding with it is aggregated into a gateway by repeater, by this gateway, the elevator service data receiving is concentrated and sent to server by log equipment again, compare with server communication respectively with each node in prior art, in the present invention by a plurality of nodes by gateway and log equipment and server communication, make the elevator service data of each elevator in a region can after gateway gathers, be transferred to together server, not only in a region, realized unified management, also can obviously reduce the load of server, secondly, be transferred to server compare with the data of each node in prior art, the data traffic from gateway to server reduces, and can reduce gateway to the expense producing due to use network traffics between server, in addition, when needs increase elevator, only a node number corresponding with this elevator need to be set, just can make this elevator facilitate to such an extent that join the local area network (LAN) that this region interior nodes and gateway form, just need to increase in addition a log equipment with elevator of every increase in prior art and compare, further reduced the cost of whole communication system.
Preferably, described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server; Wherein, described local area network (LAN) comprises: N electric life controller, a N-1 node, a plurality of repeater, a gateway and a log equipment; Described gateway is directly connected with an electric life controller in a described N electric life controller as node, all the other any N-1 electric life controllers in a described N electric life controller connect respectively a node, each node in a described N-1 node is by repeater and described gateway wireless networking described at least one, described gateway, described log equipment and described sequence server are connected, and described N is more than or equal to 2 integer.
The elevator service data that a plurality of nodes collect each electric life controller corresponding with it is aggregated into a gateway by repeater, by this gateway, the elevator service data receiving is concentrated and sent to server by log equipment again, compare with server communication respectively with each node in prior art, in the present invention by a plurality of nodes by gateway and log equipment and server communication, make the elevator service data of each elevator in a region can after gateway gathers, be transferred to together server, not only in a region, realized unified management, also can obviously reduce the load of server, secondly, be transferred to server compare with the data of each node in prior art, the data traffic from gateway to server reduces, and can reduce gateway to the expense producing due to use network traffics between server, in addition, when needs increase elevator, only a node number corresponding with this elevator need to be set, just can make this elevator facilitate to such an extent that join the local area network (LAN) that this region interior nodes and gateway form, just need to increase in addition a log equipment with elevator of every increase in prior art and compare, further reduced the cost of whole communication system.In addition, gateway can also directly be connected to use with an electric life controller as node, it is the service data that gateway can gather electric life controller, and by this data retransmission to server, so, for whole network, saved a node, save the communication process of gateway and this node, saved communication link, simplified network configuration.
Accompanying drawing explanation
Fig. 1 is the network topology structure schematic diagram of elevator Internet of Things in prior art;
Fig. 2 is the network topology structure schematic diagram of the elevator Internet of Things in first embodiment of the invention;
Fig. 3 is the network topology structure schematic diagram of the another kind of elevator Internet of Things in first embodiment of the invention;
Fig. 4 is the link keeping method flow chart in the elevator Internet of Things in first embodiment of the invention;
Fig. 5 is the link keeping method flow chart in the elevator Internet of Things that provides of second embodiment of the invention;
Fig. 6 is the structural representation of the gateway that provides of third embodiment of the invention;
Fig. 7 is the structural representation of the gateway that provides of four embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following execution mode and modification, also can realize each claim of the application technical scheme required for protection.
First embodiment of the invention provides the link keeping method in a kind of elevator Internet of Things, be applied to the gateway of elevator Internet of Things, this elevator Internet of Things comprises a plurality of local area network (LAN)s and a server, Fig. 2 is the topology diagram of a local area network (LAN), as shown in Figure 2, local area network (LAN) comprises a plurality of electric life controllers, a plurality of node, a plurality of repeater, a gateway and a log equipment.Wherein, elevator and node connect one to one, and at least two nodes are connected by a gateway log equipment, and each node is connected with gateway by least one repeater, and log equipment is connected with server; The elevator service data that node collects the electric life controller being attached thereto sends to the repeater being connected with this node, repeater sends to gateway by elevator service data, and this gateway sends to server by the elevator service data receiving by log equipment again.The management and control order that gateway reception server sends by log equipment, then the order of management and control elevator is sent to the node of the appointment being connected with repeater by coupled repeater; The node of appointment is and the node will exectorial electric life controller being connected.
The elevator service data that a plurality of nodes collect each electric life controller corresponding with it is aggregated into a gateway by repeater, by this gateway, the elevator service data receiving is concentrated and sent to server by log equipment again, compare with server communication respectively with each node in prior art, in the present invention by a plurality of nodes by gateway and log equipment and server communication, make the elevator service data of each elevator in a region can after gateway gathers, be transferred to together server, not only in a region, realized unified management, also can obviously reduce the load of server, secondly, be transferred to server compare with the data of each node in prior art, the data traffic from gateway to server reduces, and can reduce gateway to the expense producing due to use network traffics between server, in addition, when needs increase elevator, only a node number corresponding with this elevator need to be set, just can make this elevator facilitate to such an extent that join the local area network (LAN) that this region interior nodes and gateway form, just need to increase in addition a log equipment with elevator of every increase in prior art and compare, further reduced the cost of whole communication system.
Especially, gateway can also be applied in elevator Internet of Things as shown in Figure 3, and elevator Internet of Things comprises a plurality of local area network (LAN)s and a server; Wherein, local area network (LAN) comprises: N electric life controller, a N-1 node, a plurality of repeater, a gateway and a log equipment; Gateway is directly connected with (N-1) number electric life controller in N electric life controller as node, all the other any N-1 electric life controllers in N electric life controller connect respectively a node, each node in N-1 node is by least one repeater and gateway wireless networking, gateway, log equipment and sequence server are connected, and N is more than or equal to 2 integer.
Present embodiment supposes that each node is connected with gateway by a repeater, but in practical engineering application, each node can be connected with gateway by one or more repeaters, that is to say that the quantity of repeater can be equal to or greater than the quantity of node.
Gateway can also directly be connected to use with an electric life controller as node, it is the service data that gateway can gather electric life controller, and by this data retransmission to server, so, for whole network, saved a node, saved the communication process of gateway and this node, save communication link, simplified network configuration.
For the gateway in above-mentioned two kinds of elevator Internet of Things, if the link between log equipment and server has disconnected, as shown in Figure 4, the method comprises the following steps the method that gateway carries out link maintenance:
401, to server, send registration packet.
In network, if there is no for a long time data interaction between server and log equipment, the Virtual network operator that log equipment is supported by log equipment in the connection meeting of server end initiatively disconnects.If the link between log equipment and server has disconnected, gateway sends registration packet to server, comprises the physical address of gateway in registration packet.
Gateway sends registration packet to server, this registration packet comprises the physical address of this gateway, the physical address of gateway is for identifying the identity of gateway, physical address by gateway can allow server know which gateway has sent registration packet, and the object of sending out registration packet is to set up linking between gateway and server.
Statement hereby, communication between gateway and server is all connected by log equipment, the present invention is succinct for what describe, and the associated description of the data retransmission while having removed log equipment to gateway and server communication, does not exist but be not illustrated in log equipment in practical engineering application.
402, judge whether to receive the feedback message that receives registration packet that server sends.
If do not receive the feedback message that receives registration packet that server sends, execution step 404; If receive the feedback message that receives registration packet that server sends, execution step 404.Even server has received registration packet, server is by unpacking this registration packet the physical address that just can obtain a gateway, then just gateway corresponding to this physical address sent to feedback message, informs this gateway: server know with this gateway between link be communicated with.Or if gateway does not receive the feedback message that receives registration packet that server sends, server just can not respond gateway, this gateway carries out link re-establishment and maintenance with regard to continuing periodically to send registration packet to this server so.
403, periodically to server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1.
Gateway, after receiving the feedback message that server sends, just starts periodically to server, to send heartbeat packet, carries out link maintenance, and the transmission cycle is T1, and T1 is greater than 0 number, concrete, and in actual engineering application, T2 can equal 40 seconds.
The technology that sends heartbeat packet is prior art, and the structure of heartbeat packet and content can artificially define, example, can define heartbeat packet for to using STX as beginning, using ETX as the packet with 11 bytes ending up.
After often sending a heartbeat packet, then perform step 405.
404, periodically to server, send registration packet, the transmission cycle is T2.
T2 is greater than 0 and be less than the number of T1.Concrete, in practical engineering application, T2 can equal 10 seconds.
Then get back to step 402, carry out next one judgement circulation.
405, whether judgement receives the data of server transmission or judges whether to receive the data that in local area network (LAN), each node sends in T1.
The data that server sends if receive in T1 or the data that receive each node active push in local area network (LAN), illustrate that network recovery, to normal communication state, performs step 406; Otherwise, return to step 404.
406, stop sending heartbeat packet.
Especially, if link disconnects, long-time in server can not respond gateway, now, reply gateway is restarted, and then from step 401, starts to carry out the method, re-establishes and keeps link.
Embodiment of the present invention in terms of existing technologies, while occurring in a very long time there is no the situation of data contact in network, gateway periodically sends registration packet to server, this registration packet comprises the physical address of this gateway, the physical address of this gateway is for the identity of identification gateway when server receives this registration packet, by this physical address, server just knows that the communication link between the gateway corresponding with this physical address is connecting, server is after receiving the registration packet of gateway transmission, can to gateway send one it receive the feedback message of registration packet, gateway is after receiving the feedback message of server transmission, continue periodically to send heartbeat packet, carry out link maintenance to server, forever to keep the link between log equipment and server not open circuit, maintaining the long of link in network connects, keep-alive network.When server need to send order to gateway, can allow gateway receive in real time this order, without network delay phenomenon, indirectly improved network transmission speed.
Second embodiment of the invention provides the link keeping method in a kind of elevator Internet of Things, present embodiment has been done further improvement on the basis of the first execution mode, the difference of the gateway in the gateway in present embodiment and the first execution mode is: in the first execution mode, the physical address that comprises gateway in the registration packet that gateway sends to server, the unique identification that comprises gateway in the registration packet that in present embodiment, gateway sends to server, and before sending registration packet, gateway will generate unique identification.Concrete, as shown in Figure 5, present embodiment comprises that step 501 is to step 507, wherein step 502 is corresponding identical to step 406 with the step 401 in the first execution mode to step 507, at this, does not repeat.The particular content of step 501 is:
501, utilize preset algorithm to process the physical address of gateway, generate the unique identification of gateway.
In network, if there is no for a long time data interaction between server and log equipment, the Virtual network operator that log equipment is supported by log equipment in the connection meeting of server end initiatively disconnects.If the link between log equipment and server has disconnected, gateway starts to perform step 501.
Concrete, in this step, the physical address of gateway is the device identification of gateway, and this device identification is to be the identification marking that gateway distributes while dispatching from the factory, but due to the particularity of this sign, as reasons such as length, can not directly utilize this to be identified at and in network, carry out labeling gateway.Therefore, the present invention utilizes preset algorithm to calculate the physical address of this gateway, generates the unique identification of gateway, and this generative process is prior art, at this, does not repeat.Wherein, what default algorithm can adopt for us is CRC (Cyclical Redundancy Check, CRC) algorithm, and the physical address of 8 bytes of gateway can be calculated to the unique identification of 2 bytes through this CRC algorithm.CRC algorithm is prior art, at this, does not repeat.
Then perform step 502 to step 507.
Embodiment of the present invention is for the first execution mode, and the unique identification that utilizes CRC algorithm to generate gateway identifies the gateway line link of going forward side by side and keeps, and not only can reduce the data volume in network, and convenient service management local area network (LAN).
The 3rd execution mode of the present invention relates to a kind of gateway, and this gateway application is in elevator Internet of Things, and as shown in Figure 6, this gateway comprises: send registration packet module, receiver module, transmission heartbeat packet module and judge module.Wherein, send registration packet module for sending registration packet to server; Send heartbeat packet module at receiver module, do not receive that server sends receive the feedback message of registration packet time, periodically to server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1, T1 is greater than 0 number.The physical address that comprises described gateway in described registration packet.
Judge module, in T1, judges whether gateway receives the data of server transmission or judge whether gateway receives the data that in local area network (LAN), each node sends.
Send heartbeat packet module also when judging that at judge module gateway receives the data that server sends or judges that gateway receives the data that each node of local area network (LAN) sends, stop sending heartbeat packet.
Send registration packet module also at receiver module, do not receive that server sends receive the feedback message of registration packet time, periodically to server, send registration packet, the transmission cycle is T2, T2 is the number that is less than T1.
Gateway application is in elevator Internet of Things, and elevator Internet of Things comprises a plurality of local area network (LAN)s and a server, and local area network (LAN) comprises a plurality of electric life controllers, a plurality of node, a plurality of repeater, a described gateway and a log equipment; Wherein, electric life controller and a corresponding connection of node, at least two nodes are connected with log equipment by a gateway, and each node passes through at least one repeater and is connected with gateway, and log equipment is connected with server; The elevator service data that node collects the electric life controller being attached thereto sends to the repeater being connected with node, and repeater sends to gateway by elevator service data, and this gateway sends to server by the elevator service data receiving by log equipment again.
The order of the management and control elevator that gateway reception server sends by log equipment, then the order of management and control elevator is sent to the node of the appointment being connected with this repeater by coupled repeater; The node of appointment is and the node will exectorial electric life controller being connected.
Embodiment of the present invention in terms of existing technologies, while occurring in a very long time there is no the situation of data contact in network, send registration packet module and periodically to server, send registration packet, this registration packet comprises the unique identification of this gateway, identity for identification gateway when server receives this registration packet, by this unique identification, server just knows that the communication link between the gateway corresponding with this unique identification is connecting, then gateway continues periodically to send heartbeat packet to server, forever to keep the link between log equipment and server not open circuit, maintaining the long of link in network connects, keep-alive network.When server need to send order to gateway, can allow gateway receive in real time this order, without network delay phenomenon, indirectly improved network transmission speed.In addition, if the registration packet that server sends gateway within a period of time does not all have feedback, likely illustrate that problem has appearred in the link between gateway and server, now, take T2 as cycle transmission registration packet, until receive the feedback message that receives registration packet that server sends, set up linking between gateway and server.Therefore, the method can also be fed back for the very first time relevant information of out of order elevator, make maintenance personal arrive in that fault in-situ keeps in repair or directly stop using the elevator that this link is corresponding the very first time, avoided the generation of accident, ensured people's safety.
The 4th execution mode of the present invention relates to a kind of gateway, the 4th execution mode has been done further improvement on the basis of the 3rd execution mode, as shown in Figure 7, gateway after improving comprises transmission registration packet module, receiver module, transmission heartbeat packet module, judge module and generating identification module, wherein, send registration packet module, receiver module, transmission heartbeat packet module and judge module corresponding identical with transmission registration packet module, receiver module, transmission heartbeat packet module and judge module in the 3rd execution mode, its function and method of work do not repeat at this.Generating identification module, for utilizing preset algorithm to process the physical address of gateway, generates the unique identification of gateway.
Embodiment of the present invention is for the 3rd execution mode, and the unique identification that utilizes CRC algorithm to generate gateway identifies the gateway line link of going forward side by side and keeps, and not only can reduce the data volume in network, and convenient service management local area network (LAN).
It is worth mentioning that, about each involved module in the execution mode of device, be logic module, in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of a plurality of physical locations.The narration of the operation principle of each physical location in can reference method embodiment, the present invention does not repeat them here.In addition, for outstanding innovation part of the present invention, in present embodiment, the unit not too close with solving technical problem relation proposed by the invention do not introduced, but this does not show not exist in present embodiment other unit.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can to it, do various changes in the form and details, and without departing from the spirit and scope of the present invention.
Claims (14)
1. the link keeping method in elevator Internet of Things, is applied to gateway, it is characterized in that, comprising:
To server, send registration packet;
If receive the feedback message that receives described registration packet that described server sends, periodically to described server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1, described T1 is greater than 0 number;
If in described T1, receive the data of described server transmission or receive the data that in local area network (LAN), each node sends, stop sending described heartbeat packet.
2. the link keeping method in elevator Internet of Things according to claim 1, is characterized in that,
If do not receive the feedback message that receives described registration packet that described server sends, periodically to server, send registration packet, the transmission cycle is T2, described T2 is the number that is less than described T1.
3. the link keeping method in elevator Internet of Things according to claim 1, is characterized in that, comprises the physical address of described gateway or the unique identification of described gateway in described registration packet.
4. the link keeping method in elevator Internet of Things according to claim 3, is characterized in that, described, before server transmission registration packet, described method also comprises:
Utilize preset algorithm to process the physical address of described gateway, generate the unique identification of described gateway.
5. the link keeping method in elevator Internet of Things according to claim 1, is characterized in that,
Described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server, and described local area network (LAN) comprises a plurality of electric life controllers, a plurality of node, a plurality of repeater, a described gateway and a log equipment;
Wherein, described electric life controller and a corresponding connection of described node, at least two described nodes are connected with described log equipment by a described gateway, and described in each, node is connected with described gateway by repeater described at least one, and described log equipment is connected with described server;
The elevator service data that described node collects the electric life controller being attached thereto sends to the repeater being connected with described node, described repeater sends to described gateway by described elevator service data, and this gateway sends to described server by the described elevator service data receiving by described log equipment again.
6. the link keeping method in elevator Internet of Things according to claim 1, is characterized in that, described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server; Wherein, described local area network (LAN) comprises: N electric life controller, a N-1 node, a plurality of repeater, a gateway and a log equipment; Described gateway is directly connected with an electric life controller in a described N electric life controller as node, all the other any N-1 electric life controllers in a described N electric life controller connect respectively a node, each node in a described N-1 node is by repeater and described gateway wireless networking described at least one, described gateway, described log equipment and described sequence server are connected, and described N is more than or equal to 2 integer.
7. according to the link keeping method in the elevator Internet of Things described in claim 5 or 6, it is characterized in that, described gateway receives the order of the management and control elevator that described server sends by described log equipment, then the order of described management and control elevator is sent to the node of the appointment being connected with described repeater by coupled repeater; The node of the node of described appointment for being connected with the electric life controller that will carry out described order.
8. a gateway, is characterized in that, comprises and sends registration packet module, receiver module, transmission heartbeat packet module and judge module; Wherein, described transmission registration packet module is for sending registration packet to server;
Described transmission heartbeat packet module at described receiver module, receive that described server sends receive the feedback message of described registration packet time, periodically to described server, send heartbeat packet, carry out link maintenance, the transmission cycle is T1, and described T1 is greater than 0 number;
Described judge module, in described T1, judges whether described gateway receives the data of described server transmission or judge whether described gateway receives the data that in local area network (LAN), each node sends;
Described transmission heartbeat packet module also when judging that at described judge module described gateway receives the data that described server sends or judges that described gateway receives the data that each node of local area network (LAN) sends, stops sending described heartbeat packet.
9. gateway according to claim 8, it is characterized in that, described transmission registration packet module also at described receiver module, do not receive that described server sends receive the feedback message of described registration packet time, periodically to described server, send registration packet, the transmission cycle is T2, and described T2 is the number that is less than described T1.
10. gateway according to claim 8, is characterized in that, comprises the physical address of described gateway or the unique identification of described gateway in described registration packet.
11. gateways according to claim 10, is characterized in that, described gateway also comprises:
Generating identification module, for utilizing preset algorithm to process the physical address of described gateway, generates the unique identification of described gateway.
12. gateways according to claim 8, is characterized in that,
Described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server, and described local area network (LAN) comprises a plurality of electric life controllers, a plurality of node, a plurality of repeater, a described gateway and a log equipment;
Wherein, described electric life controller and a corresponding connection of described node, at least two described nodes are connected with described log equipment by a described gateway, and described in each, node is connected with described gateway by repeater described at least one, and described log equipment is connected with described server;
The elevator service data that described node collects the electric life controller being attached thereto sends to the repeater being connected with described node, described repeater sends to described gateway by described elevator service data, and this gateway sends to described server by the described elevator service data receiving by described log equipment again.
13. gateways according to claim 8, is characterized in that, described gateway application is in described elevator Internet of Things, and described elevator Internet of Things comprises a plurality of local area network (LAN)s and a server; Wherein, described local area network (LAN) comprises: N electric life controller, a N-1 node, a plurality of repeater, a gateway and a log equipment; Described gateway is directly connected with an electric life controller in a described N electric life controller as node, all the other any N-1 electric life controllers in a described N electric life controller connect respectively a node, each node in a described N-1 node is by repeater and described gateway wireless networking described at least one, described gateway, described log equipment and described sequence server are connected, and described N is more than or equal to 2 integer.
14. according to the gateway described in claim 12 or 13, it is characterized in that,
Described gateway receives the order of the management and control elevator that described server sends by described log equipment, then the order of described management and control elevator is sent to the node of the appointment being connected with described repeater by coupled repeater; The node of the node of described appointment for being connected with the electric life controller that will carry out described order.
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| CN201410226544.XA CN103997436B (en) | 2014-05-24 | 2014-05-24 | Link keeping method and gateway in a kind of elevator Internet of Things |
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| CN201410226544.XA CN103997436B (en) | 2014-05-24 | 2014-05-24 | Link keeping method and gateway in a kind of elevator Internet of Things |
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