CN102050138B - Wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and method for railway passenger cars or wagons - Google Patents
Wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and method for railway passenger cars or wagons Download PDFInfo
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Abstract
The invention relates to a wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and a method for railway passenger cars or wagons, and aims to achieve that random networking can be realized, monitoring work is real-time and accurate, a low power consumption working mode is realized, the operation is simple, the maintenance cost is low, and the maintenance is simple and convenient. The invention adopts the technical scheme that the wheel axle temperature and wind pressure monitoring device based on the wireless ad hoc networks for the railway passenger cars or wagons is characterized in that a locomotive unit and a group of carriage root units are included, a network system with a routing function is built between the locomotive unit and each carriage root unit through a wireless ad hoc network such as a Zigbee network, a WiFi network or a Bluetooth network, wherein, the locomotive unit comprises a coordinator module, a GSM (Global System for Mobile Communications) communication module, an industrial computer and a card reader, and each carriage root unit comprises a root unit module, a parameter collection sensor and a battery. The invention is suitable for real-time monitoring of physical parameters such as wheel axle temperature, braking wind pressure and the like of a wagon group with a large quantity.
Description
Technical field
The present invention relates to a kind of wagon axle temperature degree, blast real-time monitoring device and method based on wireless ad hoc network.Mainly be applicable to the real-time monitoring of the railway truck cluster with enormous quantity being carried out physical parameters such as axletree temperature, braking wind pressure, be applicable to that equally also the lorry troop to other clustered monitors in real time.
Background technology
Axle temperature to the train boxcar wheel among the operation carries out real-time round-the-clock monitoring; Safe railway operation had very heavy meaning; Especially behind the railway speed increase; Monitoring to the train parameter requires to become higher, must be sent to trainman and dispatching and monitoring center fast, in real time, reliably.
The goods train carriage that moves at present; On the bearing bush of wheel, fail to install the real time warning device that axle temperature detects because of various reasons, mainly lean on the measurement of the THDS infrared ray contactless device that the location fixed point is installed on the railway, the alarm detection of this system is whenever installed a cover infrared monitoring device at a distance from 30 kilometers; Report to the police and be approximately half an hour at interval; This mode exists non real-time property and a certain amount of possible omission, if after the train speed-raising, it is bigger that the omission possibility takes place; Will cause overheating of axle bearing etc. than serious accident, consequence is hardly imaginable.
In addition, the braking wind pressure in each joint compartment of operating train lorry also still being failed to realize real-time monitoring at present, equally also is the potential safety hazard that is present in the present railway system.
Through retrieval; The patent No. is 200920259074.1 Chinese utility model patent; Disclose a kind of train-installed infrared axle temperature monitoring device, vehicle-mounted infrared axle temperature monitoring device has been installed at the train axle place, solved problems of monitoring in real time; But still not enough below existing: the characteristics of 1) being affiliated to boxcar randomness, this technology are difficult in the monitoring that is applied to lorry; 2) adopt wired mode to carry out the signal transmission, the probability that there was a mechanical failure is bigger, and on lorry, power supply can't be provided; 3) mechanical connection mode, when the position of needs monitorings more for a long time, cable will take big quantity space; 4) during et out of order, from a large amount of cables, find out the concrete cable that has fault, and inconvenient, and when needs are changed, complex procedures, operating difficulties.
Summary of the invention
For solving the boxcar enormous amount, has free-running property when joining car; Every row lorry its joint number of needs because of loading and unloading in the way of going can change, and some compartment can be replaced by other compartment in the way; These special difficult problems of AC-less power in the boxcar; The invention provides a kind of railway truck axle temperature, wind pressure monitoring device and method based on wireless self-networking; One of the object of the invention is the random groups net mode of realization system; For setting up an intelligent terminating set in every joint compartment, each intelligent terminating set is accepted summoning of headstock with the mode of wireless network and is submitted to the management of headstock; Two of purpose is that monitoring is real-time, accurate, can be to the physical parameter monitoring in real time in 24 hours in every joint in service compartment; Three of purpose is to realize low power mode of operation, and this pattern is to have function when regularly reviving the school, guarantees clock accuracy simultaneously, prolongs the work life of battery to greatest extent; At last, that the present invention tries hard to is simple to operate, maintenance cost is low, easy maintenance.
The technical scheme that the present invention adopted is: based on railway truck axle temperature, the wind pressure monitoring device of wireless self-networking; It is characterized in that this device has comprised a headstock unit and one group of compartment root unit; Be built into a network system through ZigBee radio ad-hoc network, WiFi network or blueteeth network between headstock unit and each the compartment root unit with routing function; Wherein, The headstock unit is made up of coordinator module, GSM communication module, industrial computer and card reader, and the compartment root unit is made up of root unit module, parameter pick-up transducers and battery.
Said coordinator module is a combinator ZigBee module; It is in state of activation all the time; And set up a ccasual ZigBee network, be used for to each root unit module send calling signal call the roll queuing, receive alerting signal that each root unit module sends or to each root unit module image data; Said root unit module is a root unit ZigBee module, and its inside has comprised master cpu, communicating circuit and memory device, and root unit ZigBee module is connected with each parameter pick-up transducers in this compartment.
Said card reader is connected with combinator ZigBee module through industrial computer, and card reader is used to read the information in the information magnetic card of dispatching a car that the dispatcher provides, in this magnetic card with the ID sequence number and the password of each compartment root unit of these row lorry.
Said parameter pick-up transducers comprises shaft temperature sensor, and one or two shaft temperature sensor is installed on each wheel shaft in every joint compartment, and an environment temperature sensor also is installed in addition.
Head serviceability collecting unit is housed in the said headstock unit, and said head serviceability comprises braking, alleviation and packing state, and the data that this collecting unit collects are given industrial computer through the ZigBee network delivery.
Said parameter pick-up transducers comprises wind pressure sensor or blast switch, and the braking that is installed on every joint compartment is used for detecting braking and uses air feed pressure with on the airduct device.
Said root unit ZigBee module and shaft temperature sensor all are installed in the metal matter shielding box; Be lined with insulating gasket between root unit ZigBee module and the box body; Shaft temperature sensor adopts sheetmetal type temperature sensor and is fixed in the bottom of shielding box; Shielding box top is provided with umbrella antenna, is lined with insulating washer between umbrella antenna and the box body.
Said battery outside installs the solar power electroplax additional.Said combinator ZigBee module is connected to telltale and mini-printer.
The present invention is based on wagon axle temperature, the wind pressure monitoring method of wireless self-networking, it is characterized in that comprising:
1, the cooresponding wagon axle temperature based on wireless self-networking of this method, wind pressure monitoring device tie up to the radio ad-hoc network work down that has comprised ZigBee network, WiFi network or blueteeth network; And network service encrypted, cipher mode is the AES of AES;
2, the train head unit is set to the combinator pattern; Be provided with the headstock unit of forming by coordinator module, GSM communication module, industrial computer and card reader in the headstock; Telltale and mini-printer have also been disposed in addition; This coordinator module is in state of activation all the time, and sets up an interim radio ad-hoc network that exists;
3, each joint compartment of train is set to the root unit terminal pattern; Each compartment root unit is made up of root unit module, parameter pick-up transducers and battery; Said root unit module is moved with sleep mode at ordinary times; The parameter pick-up transducers is all weather operation then, and the mode of waking the root unit module up has the parameter pick-up transducers to report to the police to wake up and time clock wakes two kinds up; Each compartment root unit all has unique an ID sequence number and a password;
When 4, establishment one is listed as new railway truck; Card reader will be read the information magnetic card of dispatching a car that is provided by the dispatcher earlier; ID sequence number and the password unique according to each compartment root unit find each compartment that belongs to this train in the lorry cluster of magnanimity; Each compartment root unit is sent the calling signal roll-call of ranking, form a new wireless network communications system;
5, under the normal circumstances; Timer in the root unit module of each compartment root unit is every revived once at a distance from 1-5 minute; Each recovery time is 1-3 second; Carry out clock check and correction and report the ID sequence number automatically with coordinator module, if do not receive alerting signal when reviving, then each root unit module gets into dormant state again;
6, when a parameter pick-up transducers output abnormality; The alerting signal of this sensor output will be waken its cooresponding root unit module up; This root unit module is utilized another root unit module of wireless network searching near wake states, and alerting signal is passed to it, and hand-in-hand transmission like this is until the alerting signal data are reported coordinator module; If this root unit module is is then directly reported and submitted coordinator module with alerting signal in the wireless receiving and dispatching distance range of coordinator module;
7, after coordinator module is received the data of alerting signal, print out of order coach number, and on telltale, send the warning acousto-optic, with coordinator module bonded assembly GSM communication module alert data is reported ground-surface monitoring and control centre simultaneously through mini-printer.
As preferably, said radio ad-hoc network adopts the ZigBee network, and said coordinator module is a combinator ZigBee module, and said root unit module is a root unit ZigBee module, and the sending and receiving distance of ZigBee network is not less than 1.5～2 kilometers.
Combinator pattern described in the step 2 has 3 kinds of mode of operations; A kind of is timer-operated when when each compartment root unit is revived, carrying out the school; Second kind is to receive the alerting signal data that each compartment root unit is sent in real time, and the third is under the state that the compartment root unit is revived, to gather parametric data.
During to the wheel shaft temperature monitoring; Said parameter pick-up transducers adopts the shaft temperature sensor and the environment temperature sensor of super low-power consumption, to the detection range of temperature between-55 ℃～125 ℃, when the temperature of axletree above 85 ℃～90 ℃; Or axletree temperature and ambient temperature are when differing 35 ℃～40 ℃; Image data is preserved to industrial computer through the ZigBee network delivery, after industrial computer is handled the temperature data of gathering, and output early warning or alert data.
In the third mode of operation, when the data of gathering are wind pressure value, at first to head serviceability collecting unit be installed in the headstock unit, said head serviceability comprises braking, alleviation and packing state; Respectively to different conditions; The wind pressure sensor or the blast switch that are installed in each compartment root unit are preserved through the ZigBee network delivery wind pressure data that collects to industrial computer; After wind pressure value handled; When being lower than setting value for wind pressure value, industrial computer sends early warning signal or wind pressure sensor output alarm data-signal.
The invention has the beneficial effects as follows: (one) the present invention adopts the networking mode of randomness; Can form a provisional radio net at any time; In the railway truck of magnanimity, call out each compartment that belongs to this train; And each compartment submits to the management of head combinator, reports contingent failure condition in real-time 24 hours; (2) monitoring fast, in real time, has accurately improved train speed-raising back safety of railway transportation property greatly, is a creation of benefiting the nation and the people; (3) owing to do not have alternating current in the compartment of lorry, the present invention realizes low power mode of operation, and this pattern is to have function when regularly reviving the school, guarantees clock accuracy simultaneously, prolongs the work life of battery to greatest extent; At last, the present invention implements easily, simple to operate, and maintenance cost is low, easy maintenance.
Description of drawings
Fig. 1 is the structural representation at headstock of the present invention terminal.
Fig. 2 is the structural representation of compartment of the present invention root unit.
Fig. 3 is system works flow process figure of the present invention.
The specific embodiment
Like Fig. 1, shown in Figure 2; The monitoring device of present embodiment; A headstock unit 1 and one group of compartment root unit 2 have been comprised; Keep communicating by letter through the radio ad-hoc network between headstock unit and each compartment root unit, optional radio MANET comprises: ZigBee network, WiFi network or blueteeth network.Present embodiment is considered the requirement of low energy consumption, selects the ZigBee network to make up a network system with routing function, below be the structure composition that example is specifically introduced device just with the ZigBee net.Monitoring device has comprised headstock unit 1 and compartment root unit 2; Headstock unit 1 (grinds China-MIC-2000) form with card reader 3 (the flourish scholar ID-05 in Guangzhou) by combinator ZigBee module 1-1 (adopting the chip of the STM32W-EMZ-3118 of ST company of STMicw Electronics), GSM communication module 1-2 (the western ADT DTD-S05CI of electronics corporation), industrial computer 1-3; Be the needs that show and print; Also be equipped with telltale 4 and mini-printer 5 at headstock, these two final terminals all are connected with combinator ZigBee module 1-1.Combinator ZigBee module is in state of activation all the time; And set up a ccasual ZigBee network, be used for sending call the roll queuing or receive each root unit module data sent and alerting signal in real time or of calling signal initiatively to each root unit module collecting temperature or wind pressure data to each root unit module.This routine compartment root unit 2 is made up of root unit ZigBee module 2-1 (adopting the chip of the STM32W-EMZ-3018 of ST company of STMicw Electronics), shaft temperature sensor 7 (adopting the model of dallas, u.s.a company is the chip of DSI8B20), environment temperature sensor, wind pressure sensor 8 (can select the moving MD-PS001 pressure sensor chip of Taiwan inscription, CFBPT UP sensor or CFBM diffusion silicon pressure sensor for use) or blast switch and battery 6; Its inside of root unit ZigBee module has comprised master cpu, communicating circuit and memory device, and root unit ZigBee module is connected with each sensor electrical in this compartment.
Said card reader 3 is connected with combinator ZigBee module 1-1, and card reader is used to read the information in the information magnetic card of dispatching a car that the railway truck dispatcher provides, in this magnetic card with the ID sequence number and the password of each compartment root unit 2 of these row lorry.
Said shaft temperature sensor 7 is installed one or two shaft temperature sensor on each wheel shaft in every joint compartment, an environment temperature sensor is also installed in every in addition joint compartment.Temperature sensor is installed on the axletree equalizer of vehicle, is positioned at directly over the spindle nose about 10 centimetres, and punching is fixed with screw and spring shim.Structurally; The root unit ZigBee module 2-1 in compartment and shaft temperature sensor 7 all are installed in the metal matter shielding box; Be lined with insulating gasket between root unit ZigBee module 2-1 and the box body; Shaft temperature sensor 7 adopts sheetmetal type temperature sensor and is fixed in the bottom of shielding box, and shielding box top is provided with umbrella antenna, is lined with insulating washer between umbrella antenna and the box body.In order further to prolong the service life of battery, install solar power electroplax 6 additional in battery 6 outsides, when sunlight is arranged, carry out floating charge and can in time replenish electric weight.
For moving wind pressure data in compartment and collection; Because locomotive is under different operation states; Pressure like its braking air pipe under braking mode, relieved state or the packing state is different; Therefore for detecting blast, a head serviceability collecting unit 9 must be set in the headstock unit, the data that this collecting unit collects are also passed through the ZigBee network storage in industrial computer 1-3.And be installed in the wind pressure sensor 8 or the blast switch of each compartment root unit, and use T-pipe joint to be installed near the travelled by vehicle portion train adaptor union place, size is fixed by vehicle, is used for detecting braking and uses air feed pressure.
Below through implementation method of the present invention and combine apparatus of the present invention to do further to describe:
1, the pairing monitoring device of this method can be worked under ZigBee network, WiFi network or blueteeth network; Cut down the consumption of energy in order to economize on electricity; This implementation method has been selected operation under the ZigBee network, and network signal is encrypted, and cipher mode is the AES of AES.The sending and receiving distance of ZigBee network is not less than 1.5～2 kilometers.
2, train head is set to the combinator pattern; Be provided with the headstock unit of forming by combinator ZigBee module 1-1, GSM communication module 1-2, industrial computer 1-3 and card reader 31 in the headstock; Telltale 4 and mini-printer 5 have also been disposed in addition; This coordinator module is in state of activation all the time, and sets up an interim ZigBee network that exists.The combinator pattern of this headstock is mainly born following several tasks:
2.1 set up out a new freight trains when setting out; At first the railway truck dispatcher will give the driver information magnetic card of dispatching a car; Hang with the sum in compartment above with this train, ID sequence number and signcode that every joint compartment is unique, the driver takes this magnetic card and formerly operates at card reader 3 Card Readers; Obtain the list of this array carriage by ID number, and on mini-printer 5, get this list confession driver and use; Meanwhile; The combinator ZigBee module 1-1 of head utilizes the ZigBee network equally by the compartment everywhere that is dispersed on ID number and the password calling list; These compartments are gathered into the new lorry of row, and all compartments all keep communicating by letter under the interim ZigBee network environment of setting up with head.The age of casual network is to next website, takes place to stop behind the replacing compartment, reads once more till the information on the magnetic card, on travel way, can constantly repeat.When with manual work check number of cars consistent after, then allow to dispatch a car.
2.2 in the operation way during timing wake-up school; Because there is civil power the headstock unit, combinator ZigBee module 1-1 can round-the-clockly move with the sending and receiving mode, revives and order when once checking the school with the headstock unit in each unit, compartment in 2-3 minute; Order the clock of unified each compartment root unit when issuing the school.Usually once be no more than 2 minutes during the school, the error of clock request in 2 minutes is no more than 0.0001 second.Whether on-line operation of each compartment root unit of test also is responsible in the headstock unit, prevents to crash, fall machine.
2.3 the headstock unit receives the alerting signal that the compartment root unit is sent at any time, display alarm, prints alerting signal, and through GSM communication module 1-2 alert data is sent to fixed control center, ground.The all right CDMA mobile communication system of outer net, WCDMA GSM, TDS-CDMA GSM, CDMA2000 GSM, GPRS or 3G network.
2.4 under compartment root unit wake states, temperature or pressure data are initiatively collected to the compartment root unit in the headstock unit.
Change the compartment 2.5 advance in the way, if some compartments arrive at a station and leave in the way of advancing, other newly-increased compartments add these lorries, then need be on card reader 3 again the Card Reader queuing call the roll, form new syntagmatic.
3, each joint compartment of train is set to the root unit terminal pattern, and each compartment root unit 2 is made up of root unit ZigBee module 2-1, parameter pick-up transducers (this example comprises shaft temperature sensor 7, environment temperature sensor, wind pressure sensor 8 or blast switch) and battery 6.With the sleep mode operation, the parameter pick-up transducers is all weather operation then at ordinary times for said root unit ZigBee module.The mode of waking the root unit module up has the parameter pick-up transducers to report to the police to wake up and wakes two kinds up by the clock of timer.Each compartment root unit 2 all has unique an ID sequence number and a password.
4, set up into the new railway truck of row through step 2 and step 3 after; Subsequent is exactly that card reader 3 is read the information magnetic card of dispatching a car that the dispatcher provides; In the lorry cluster of magnanimity, find each compartment that belongs to this train according to each compartment root unit 2 unique ID sequence number and password; Each compartment root unit 2 is sent the calling signal roll-call of ranking, form a provisional wireless network communications system.
5, under normal circumstances; The root unit ZigBee module 2-1 of each compartment root unit 2 is every to revive once at a distance from 1-5 minute; Preferably revived once in 2 minutes (be heartbeat revive function), each recovery time is 1-3 second (as the pulsation parameter of operation), and the back of reviving is carried out the clock check and correction and reported ID sequence number and data collection task automatically with combinator ZigBee module 1-1; If do not receive the alerting signal that sensor is sent when reviving, then each root unit ZigBee module gets into dormant state once more.The compartment root unit moves with the cycle mode of " work---standby---work---standby ".
6, when a parameter pick-up transducers output abnormality; The alerting signal of this sensor output will be waken its cooresponding root unit ZigBee module 2-1 up; This root unit ZigBee module is utilized another root unit ZigBee module of the contiguous wake states of ZigBee web search, and alerting signal is passed to it, and hand-in-hand transmission like this is until the alerting signal data being reported combinator ZigBee module 1-1; If root unit ZigBee module is nearer apart from the position of combinator ZigBee module; Promptly in the wireless receiving and dispatching distance range of combinator,, and directly report and submit combinator then not through the adjacent cells transmission;
7, after combinator ZigBee module is received the data of alerting signal; Print out of order coach number through mini-printer 5; And on telltale 4, send the warning acousto-optic, with combinator ZigBee module bonded assembly GSM communication module 1-2 alert data is reported ground-surface monitoring and control centre simultaneously.
Embodiment 2.4 in, when combinator ZigBee module 1-1 regularly (time gap of temperature and pressure is different) when each compartment root unit was carried out image data, the data of collection were delivered in the industrial computer through serial ports UARP or WIFI.Industrial computer is gathered the related data of the last vehicle operating of storing in the compartment root unit earlier, and new data acquisition is analyzed, compared data by the system database special software of industrial computer to the back, as finding difference the greater, promptly points out.Equally, on the memory device of root unit ZigBee module 2-1, also retain the data that a last operation batch is arranged, new data can cover old data automatically.
To the collection of axletree axle temperature, there is shaft temperature sensor 7 and environment temperature sensor of 8 super low-power consumptions in every joint compartment, to the detection range of temperature between-55 ℃～125 ℃.A kind of situation is to surpass 85 ℃～90 ℃ when the temperature of axletree, sensor output alarm data, and when axletree temperature and ambient temperature differed 35 ℃～40 ℃, sensor is the output alarm data also.Another kind of situation is by combinator ZigBee module 1-1 collection in every separated 10-20 minute once, to send into after collection is accomplished and store classification on the industrial computer; Industrial computer uses relevant database software that the data of gathering are analyzed comparison, and the one, the comparison of axle temperature between each compartment, adjacent compartment axle temperature difference absolute value surpasses 25% (concrete quantized value is formulated by railway technology management department); Then industrial computer prompting early warning, the 2nd, compare with the preceding data of once retaining, if aviation value is more or less the same; Then think normal; Having like indivedual compartments transfinites, and then points out early warning and is done by software set and follow the tracks of relatively, is set at the running condition of following the trail of this compartment wheel shaft.
For the collection of car brake wind pressure data, two kinds of situation are equally also arranged, a kind of situation is mounted in the wind pressure sensor 8 or the blast switch of compartment root unit and finds that parameter exceeds standard, and will report to the police from trend headstock unit through the ZigBee network.Another kind of situation is to gather once at a distance from 10-30 minute by combinator ZigBee module 1-1 is every; As stated; Because locomotive is in different operation states, be different like the pressure of its braking air pipe under braking mode, relieved state or the packing state, therefore should under same state, carry out (collection to running state data is accomplished by the head serviceability collecting unit that is contained in headstock 9) to the collection of pressure parameter; The data that collect are realized the wind pressure value in each compartment and the absolute value that carries out of adjacent compartment are compared by industrial computer; If outstanding especially inconsistency is arranged, for example the difference of the wind pressure value in the 5th joint compartment and adjacent compartment surpasses 25% (concrete quantized value is formulated by railway technology management department), thinks that then the braking air pipe blast in this compartment is unusual; Industrial computer prompting early warning waits pending.
Claims (4)
1. the railway truck axle temperature based on wireless self-networking, wind pressure monitoring device; It is characterized in that this device has comprised a headstock unit (1) and one group of compartment root unit (2); Be built into a network system through ZigBee radio ad-hoc network between headstock unit and each the compartment root unit with routing function; Wherein, Headstock unit (1) is made up of coordinator module, GSM communication module (1-2), industrial computer (1-3) and card reader (3), and compartment root unit (2) is made up of root unit module, parameter pick-up transducers and battery (6);
Said coordinator module is a combinator ZigBee module (1-1); It is in state of activation all the time; And set up a ccasual ZigBee network, be used for to each root unit module send calling signal call the roll queuing, receive alerting signal that each root unit module sends or to each root unit module image data; Said root unit module is a root unit ZigBee module (2-1), and its inside has comprised master cpu, communicating circuit and memory device, and root unit ZigBee module is connected with each parameter pick-up transducers in this compartment;
Said card reader (3) is connected with combinator ZigBee module (1-1) through industrial computer (1-3); Card reader is used to read the information in the information magnetic card of dispatching a car that the dispatcher provides, in this magnetic card with the ID sequence number and the password of each compartment root unit (2) of these row lorry;
Said parameter pick-up transducers comprises shaft temperature sensor (7), and one or two shaft temperature sensor is installed on each wheel shaft in every joint compartment, and an environment temperature sensor also is installed in addition;
Head serviceability collecting unit (9) is housed in the said headstock unit (1), and said head serviceability comprises braking, alleviation and packing state, and the data that this collecting unit collects are given industrial computer (1-3) through the ZigBee network delivery;
Said parameter pick-up transducers comprises wind pressure sensor (8) or blast switch, and the braking that is installed on every joint compartment is used for detecting braking and uses air feed pressure with on the airduct device;
Said root unit ZigBee module (2-1) and shaft temperature sensor (7) all are installed in the metal matter shielding box; Be lined with insulating gasket between root unit ZigBee module (2-1) and the box body; Shaft temperature sensor (7) adopts sheetmetal type temperature sensor and is fixed in the bottom of shielding box; Shielding box top is provided with umbrella antenna, is lined with insulating washer between umbrella antenna and the box body;
Said battery (6) outside installs solar power electroplax (10) additional;
Said combinator ZigBee module (1-1) is connected to telltale (4) and mini-printer (5).
2. the wagon axle temperature based on wireless self-networking, wind pressure monitoring method is characterized in that comprising:
2.1, the cooresponding wagon axle temperature based on wireless self-networking of this method, wind pressure monitoring device tie up to the radio ad-hoc network work down that has comprised ZigBee network, WiFi network or blueteeth network; And network service encrypted, cipher mode is the AES of AES;
2.2, the train head unit is set to the combinator pattern; Be provided with the headstock unit of forming by coordinator module, GSM communication module (1-2), industrial computer (1-3) and card reader (3) (1) in the headstock; Telltale (4) and mini-printer (5) have also been disposed in addition; This coordinator module is in state of activation all the time, and sets up an interim radio ad-hoc network that exists;
2.3, train each the joint compartment be set to the root unit terminal pattern; Each compartment root unit (2) is made up of root unit module, parameter pick-up transducers and battery (6); Said root unit module is moved with sleep mode at ordinary times; The parameter pick-up transducers is all weather operation then, and the mode of waking the root unit module up has the parameter pick-up transducers to report to the police to wake up and time clock wakes two kinds up; Each compartment root unit (2) all has a unique ID sequence number and a password;
2.4, when setting up the new railway truck of row; Card reader (3) will be read the information magnetic card of dispatching a car that is provided by the dispatcher earlier; ID sequence number and the password unique according to each compartment root unit (2) find each compartment that belongs to this train in the lorry cluster of magnanimity; Each compartment root unit (2) is sent the calling signal roll-call of ranking, form a new wireless network communications system;
2.5, under the normal circumstances; Timer in the root unit module of each compartment root unit (2) is every revived once at a distance from 1-5 minute; Each recovery time is 1-3 second; Carry out clock check and correction and report the ID sequence number automatically with coordinator module, if do not receive alerting signal when reviving, then each root unit module gets into dormant state again;
2.6, when a parameter pick-up transducers output abnormality; The alerting signal of this sensor output will be waken its cooresponding root unit module up; This root unit module is utilized another root unit module of wireless network searching near wake states, and alerting signal is passed to it, and hand-in-hand transmission like this is until the alerting signal data are reported coordinator module; If this root unit module is is then directly reported and submitted coordinator module with alerting signal in the wireless receiving and dispatching distance range of coordinator module;
2.7, after coordinator module receives the data of alerting signal; Print out of order coach number through mini-printer (5); And on telltale (4), send the warning acousto-optic, with coordinator module bonded assembly GSM communication module (1-2) alert data is reported ground-surface monitoring and control centre simultaneously.
3. monitoring method according to claim 2; It is characterized in that: the combinator pattern described in the step 2.2 has 3 kinds of mode of operations; A kind of is timer-operated when when each compartment root unit is revived, carrying out the school; Second kind is to receive the alerting signal data that each compartment root unit is sent in real time, and the third is under the state that the compartment root unit is revived, to gather parametric data.
4. monitoring method according to claim 3; It is characterized in that: in the third mode of operation; When the data of gathering are wind pressure value, at first to head serviceability collecting unit (9) be installed in the headstock unit, said head serviceability comprises braking, alleviation and packing state; Respectively to different conditions; The wind pressure sensor (8) or the blast switch that are installed in each compartment root unit preserve for industrial computer (1-3) through the ZigBee network delivery wind pressure data that collects; After wind pressure value handled; When being lower than setting value for wind pressure value, industrial computer sends early warning signal or wind pressure sensor output alarm data-signal.
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| CN2010105818494A CN102050138B (en) | 2010-11-30 | 2010-11-30 | Wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and method for railway passenger cars or wagons |
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| CN2010105818494A CN102050138B (en) | 2010-11-30 | 2010-11-30 | Wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and method for railway passenger cars or wagons |
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| CN102050138B true CN102050138B (en) | 2012-12-19 |
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