CN104994187A - Equipment and method for obtaining node address from wireless network - Google Patents

Abstract

The invention relates to equipment and a method for obtaining a node address from a wireless network, which are capable of greatly improving operability of address query work in engineering management and maintenance. The method comprises the following steps that 1, an inquiry unit sends a broadcast query request under the trigger of a key, and all nodes within the radio-frequency range can receive the query request and respond; 2, the inquiry unit receives replies of all nodes within the radio-frequency range; 3, the inquiry unit has a waiting time from sending the query request in the step 1, the step 2 is always carried out in this time, and once the waiting time reaches a threshold, wireless data reception can be stopped; 4, the inquiry unit stops wireless data reception and starts to analyze the received data to obtain a node address and an RSSI (Received Signal Strength Indicator) which are received by a physical layer; and 5, the inquiry unit compares the RSSI receiving the data and sorts out the maximum node address of the RSSI; and the maximum node of the RSSI is a nearest node, so that the address of the node is known.

Description

A kind of apparatus and method for for obtaining node address in wireless network

Technical field

The present invention relates to wireless local area network technology field, particularly in a kind of wireless network, obtain the apparatus and method for of node address.

Background technology

In the management maintenance process of wireless networking application, generally all need the corresponding relation knowing node address and installation site.Generally just need to record this corresponding relation in systems in which early stage in the project implementation, it has following several mode:

Mode 1. installs the node of assigned address at assigned address.Address of node parameter just configured in the stage of dispatching from the factory, and installed front lay and pulled Node distribution situation, install corresponding node at correspondence position.

Mode 2. installs arbitrary node at assigned address, records the address of its outward appearance mark.Address of node parameter just configured in the stage of dispatching from the factory, and can reveal address parameter by outward appearance identifying body, recorded this address of node parameter when correspondence position is installed.

Mode 3. installs arbitrary node at assigned address, inquires about node address when it runs.Address of node parameter just configured in the stage of dispatching from the factory, and did not have outward appearance to identify and embodied address parameter, when correspondence position is installed by the query node such as serial ports or display screen.

Mode 4. installs arbitrary node at assigned address, configuration assigned address.Address of node parameter is invalid when dispatching from the factory, and installs front lay and pulls Node distribution situation, carry out configuration node when correspondence position is installed by man-machine interaction modes such as toggle switch, serial ports, buttons.

What mode 1 adopted is orderly installation.In large-scale network-estabilishing, the drawback of this mode is obvious, and operating personnel needs from large quantities of node to be installed, choose the equipment of specifying and installs.

What mode 2 adopted is unordered installation.This is the simplest, is also the maximum a kind of mode in current engineering.Because outward appearance mark is artificial interpolation, the situations such as mark damage, mistakes and omissions may be there is.

What mode 3 adopted is unordered installation.Further than mode 2, the correctness recorded can be guaranteed.But add certain hardware cost simultaneously, also have higher operation requirements to installation personnel.

What mode 4 adopted is unordered installation.With mode 3, add hardware cost, also have higher operation requirements to installation personnel.

Above-mentioned situation is the process in project implementation early stage, in addition, if project occurs that the situation of loss is not recorded or recorded in node address and installation site mid-term, conventional process mode will inquire about the node address of correspondence position by pass-through mode 3, and just there is many inconvenience in the occasion that street lamp, mine etc. are not easy contact arrangement.

Summary of the invention

For the problems referred to above, the present invention proposes one and does not rely on outward appearance mark, can the Apparatus and method for of wireless poll correspondence position node address.Compare existing local search mode, save Material Cost.Can realize in the early stage of the project installing and being separated of inquiry two operating processes, installation personnel is only responsible for mechanical erection simultaneously, follow-uply carrys out inquire address by system maintenance personnel, reduces the operation requirements to installation personnel.Be not easy the occasion of contact arrangement in addition, method provided by the invention drastically increases the operability of address lookup work.

For reaching above-mentioned purpose, the present invention adopts following technical scheme:

For obtaining an equipment for node address in wireless network, comprise the controller, radio-frequency module, button and the display unit that cooperatively interact; Wherein:

Controller, for the triggering of key range, the broadcast query request in radio-frequency module transmission radio-frequency region is controlled after button triggers, and the wireless poll receiving each node is replied, after completing reply and receiving, controller parses RSSI maximum node, controls display unit and demonstrates corresponding node address data;

Radio-frequency module is wireless radio frequency modules, possesses RSSI measuring ability;

Button, for triggering querying flow;

Display unit, for showing Query Result.

For obtaining a method for node address in wireless network, comprise the following steps:

Step 1, inquiry unit is under button triggers, and send the inquiry request of broadcast, all nodes in radio-frequency region all can receive this inquiry request, and make response;

Step 2, the reply of all nodes within the scope of inquiry unit received RF;

Step 3, in inquiry unit from step 1 sends inquiry request, has a stand-by period, can carry out step 2 during this period always, once the stand-by period reaches threshold value, then can stop receive data by wireless;

Step 4, inquiry unit terminates receive data by wireless, starts to resolve the data received, and parses node address and RSSI that physical layer receives;

Step 5, inquiry unit contrasts the RSSI receiving data, picks out the node address that RSSI is maximum; Namely the node that then this RSSI is maximum is nearest node, thus is aware of this address of node.

Adopt technique scheme, the present invention can light wireless acquisition address of node.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of inquiry unit;

Fig. 2 is the workflow diagram of inquiry unit;

Fig. 3 is the preferred exemplifying embodiment of querying flow.

Embodiment

Fig. 1 is the structured flowchart of inquiry unit of the present invention.

With reference to Fig. 1, controller 100 controls radio-frequency module 101, button 102, display unit 103.Particularly, controller identifies the triggering of button 102, and control radio-frequency module 101 sends the broadcast query request in radio-frequency region, and the wireless poll receiving each node is replied.After completing reply and receiving, controller parses RSSI maximum node, controls display unit and demonstrates corresponding node address data.

Radio-frequency module 101 is wireless radio frequency modules, possesses RSSI measuring ability.

Button 102 is input equipment, triggers query statement.

Display unit 103 is output equipment, shows qualified node address.

Fig. 2 is the workflow diagram of inquiry unit.

In step 201, inquiry unit is under button triggers, and send the inquiry request of broadcast, all nodes in radio-frequency region all can receive this inquiry request, and make response.

In step 202., the reply of all nodes within the scope of inquiry unit received RF.

In step 203, in inquiry unit from step 201 sends inquiry request, there is a stand-by period, can carry out step 202 during this period always, once the stand-by period reaches threshold value, then can stop receive data by wireless.

In step 204, inquiry unit terminates receive data by wireless, starts to resolve the data received, and parses node address and RSSI that physical layer receives.

In step 205, inquiry unit contrasts the RSSI receiving data, picks out the node address that RSSI is maximum.Namely the node that then this RSSI is maximum is nearest node, thus is aware of this address of node.

Fig. 3 is the preferred exemplifying embodiment of querying flow in the present invention.

Have inquiry unit D1 in example, radio node R1, R2, R3, R4, R5, personnel query near R3, inquires about the node address of R3 with inquiry unit D1.

In step 301, D1 sends broadcast query request, all receives this inquiry request at R2, R3, R4 of D1 radio-frequency region.R1 and R5, in D1 radio-frequency region, does not receive inquiry request.

In step 302, R2, R3, R4 inquiry request to D1 has made reply.D1 receives the response to query of each node, and parse node address and the RSSI of the reply of each bar, pick out the node address that RSSI is maximum, this address is the node address of R3.

As mentioned above, can wireless acquisition address of node by this method.

Although specifically show in conjunction with preferred exemplifying embodiment and describe invention; but those skilled in the art should be understood that; in the spirit and scope not departing from the invention that appended claims limits, can make a variety of changes invention in the form and details, be the protection range of invention.

Claims (2)

1. for obtaining an equipment for node address in wireless network, it is characterized in that: comprise the controller, radio-frequency module, button and the display unit that cooperatively interact; Wherein:

Controller, for the triggering of key range, the broadcast query request in radio-frequency module transmission radio-frequency region is controlled after button triggers, and the wireless poll receiving each node is replied, after completing reply and receiving, controller parses RSSI maximum node, controls display unit and demonstrates corresponding node address data;

Radio-frequency module is wireless radio frequency modules, possesses RSSI measuring ability;

Button, for triggering querying flow;

Display unit, for showing Query Result.

2., for obtaining a method for node address in wireless network, comprise the following steps:

Step 1, inquiry unit is under button triggers, and send the inquiry request of broadcast, all nodes in radio-frequency region all can receive this inquiry request, and make response;

Step 2, the reply of all nodes within the scope of inquiry unit received RF;

Step 3, in inquiry unit from step 1 sends inquiry request, has a stand-by period, can carry out step 2 during this period always, once the stand-by period reaches threshold value, then can stop receive data by wireless;

Step 4, inquiry unit terminates receive data by wireless, starts to resolve the data received, and parses node address and RSSI that physical layer receives;

Step 5, inquiry unit contrasts the RSSI receiving data, and pick out the node address that RSSI is maximum, then namely the node that this RSSI is maximum is nearest node, thus is aware of this address of node.