CN110285858A - A wireless sensor-based monitoring device for railway train operating environment - Google Patents

Abstract

The invention discloses a wireless sensor-based railway train operating environment monitoring device, which includes: a station operating environment monitoring terminal, which is used to monitor the environmental data in the train stop station, and according to the image information at different positions in the train stop station, through Extract image features to determine the traffic density and safety information at different locations in the train station; the operating environment monitoring terminal in the train is used to monitor the environmental data in the train, and determine the pollution according to the concentration of pollutants in different monitoring areas. species and degree of pollution. The invention monitors the image information at different positions in the station where the train stops, extracts the image features, and obtains the passenger flow density and ride safety information, thereby ensuring that passengers can get on the train safely before the train starts; by analyzing the types and concentrations of pollutants in the train Effective monitoring, thus ensuring a comfortable and good environment for long-time train rides.

Description

A wireless sensor-based monitoring device for railway train operating environment

technical field

The present invention relates to the technical field of train operating environment, and more particularly relates to a wireless sensor-based monitoring device for railway train operating environment.

Background technique

Wireless sensor networks have broad application prospects in the field of railway train operating environment monitoring. The monitoring of the station environment is to ensure that passengers get on the train safely and effectively, and the monitoring of the interior environment is to ensure that passengers are in a comfortable and good environment.

However, when the flow of people is large, at present, only the flow of people is counted, and random regulation is not considered to ensure that passengers can get on the train before the train starts, and there is no monitoring of the safe flow of a large number of people when they get on the train, so that Passengers cannot be guaranteed to get on the train safely and effectively; at the same time, the current monitoring of the environment inside the train only stays in the monitoring of common environmental factors such as air temperature and humidity, air particle concentration, etc., and does not specifically consider the actual situation of the train and the pollutants in the train space Monitoring, thereby failing to effectively monitor the internal environment of the train.

Contents of the invention

An embodiment of the present invention provides a wireless sensor-based device for monitoring the operating environment of railway trains to solve the problems in the above-mentioned background technology.

The embodiment of the present invention provides a wireless sensor-based railway train operating environment monitoring device, including: a plurality of station operating environment monitoring terminals, a plurality of in-car operating environment monitoring terminals, a train monitoring center, and a ZigBee wireless communication network. Both the environment monitoring terminal and the operating environment monitoring terminal in the vehicle communicate wirelessly with the train monitoring center through the ZigBee wireless communication network;

The station operation environment monitoring terminal is used to monitor the environmental data in the train stop station, and according to the image information and sound information at different positions in the train stop station, by extracting image features and sound features, determine the different positions in the train stop station The crowd density, ride safety information and signal-to-noise ratio information;

The in-vehicle operating environment monitoring terminal is used to monitor the environmental data in the train, and determine the pollutant category and pollution degree according to the concentration of pollutant odor in different monitoring areas;

The train monitoring center is used to broadcast crowd evacuation and dispatching by voice according to the principle of proximity according to the crowd density; it is used to broadcast station safety warning broadcast by voice according to the safety information of passengers; it is used to broadcast station safety warning according to the signal to noise ratio information, Announcement of station noise control by voice; and broadcast of pollutant removal in vehicles by voice according to pollutant category and pollution degree.

Further, a plurality of the station operating environment monitoring terminals are respectively arranged at different positions on the top of the train, and the station operating environment monitoring terminals include: a first acquisition module, and the first acquisition module includes: an image acquisition unit, an audio Acquisition unit and external environment acquisition unit;

The image collection unit is used to collect the image information in the station where the train stops;

The audio collection unit is used to collect the sound information in the station where the train stops; the sound information includes: broadcast sound information, crowd noise information;

The external environment collection unit is used to collect temperature, brightness, smog concentration and meteorological data in the station where the train stops.

Further, the external environment collection unit includes: a first temperature sensor, a smoke sensor and a weather sensor; wherein the weather sensor includes: a capacitive sensor for measuring relative humidity and an ultrasonic sensor for measuring wind speed.

Further, the station operating environment monitoring terminal includes: a human flow density determination module, a ride safety determination module and a signal-to-noise ratio determination module;

The crowd density determination module is used to determine the crowd density at different positions in the station through the distribution of the number of head portraits according to the extracted image features;

The ride safety determination module is used to determine the ride safety status in the station through the contour shape of the crowd flow and the human body movement state in the contour shape of the crowd flow according to the extracted image features;

The signal-to-noise ratio determination module is used to determine the signal-to-noise ratio in the station through the decibels of the broadcast sound and the decibels of the crowd's voice according to the extracted sound features.

Further, a plurality of the in-vehicle operating environment monitoring terminals are arranged in partitions inside the train, and the in-vehicle operating environment monitoring terminals include: a second acquisition module, and the second acquisition module includes: an air quality monitoring unit, a second temperature sensor and humidity sensor;

The air quality monitoring unit is used to monitor the particle concentration and pollutant odor concentration inside the train;

The second temperature sensor is used to monitor temperature information in the train;

The humidity sensor is used for monitoring humidity information in the train.

Further, the air quality monitoring unit includes: a particulate matter concentration sensor and a pollutant odor concentration detection unit; wherein the particulate matter concentration sensor includes a sensor with TSP, PM10, PM5, PM2.5 or PM1 concentration specifications.

Further, the in-vehicle operating environment monitoring terminal includes: a pollutant category determination module and a pollution degree determination module;

The pollutant category determining module is used to determine the monitored pollutant gas category through the pollutant category detection unit; wherein, the pollutant gas category includes: odor, musty smell, fishy smell;

The pollution degree determining module is used for judging the monitored pollutant gas concentration through the pollutant concentration detection unit.

Further, the train monitoring center includes: a personnel evacuation deployment reminder module, a safety early warning module and a pollutant removal reminder module;

The personnel evacuation allocation reminder module is used to remind personnel evacuation allocation according to the principle of proximity according to the density of people at the entrance of each carriage when the travel time reaches the preset time;

The safety early warning module is used for broadcasting safety early warning at the corresponding position in the station when the outline shape of the flow of people in the train stop station is the shape of "crowd crowd" and the shape of "crowd crowd" has a "fighting" action;

The pollutant removal reminder module is used to remind the pollutant removal in the vehicle when the pollutant gas concentration reaches a preset concentration.

The embodiment of the present invention provides a wireless sensor-based railway train operating environment monitoring device. Compared with the prior art, its beneficial effects are as follows:

The present invention monitors the image information at different positions in the station where the train stops, and extracts the image features to obtain the passenger flow density and ride safety information. It can get on the train before the train starts, and judge whether there is an accident in the process of the flow of people according to the contour shape of the flow of people in the station and the movement of people, so that the accident can be dealt with in time, ensuring that passengers get on the train safely and effectively. Further, by monitoring the sound information at different positions in the train stop station, the signal-to-noise ratio information is determined according to the broadcast sound and the noise of the crowd. When the noise of the crowd is large, it can urgently and continuously broadcast the voice prompt to reduce the noise, thus ensuring The boarding process at the station is carried out in an orderly and safe manner.

The invention effectively monitors the types of pollutants in the train (odor, musty smell, fishy smell) and various types of concentrations, and when the concentration of pollutant gas reaches the preset concentration, it will remind the pollutants in the train to remove them, thereby ensuring long-term maintenance. The environment of the time train ride is comfortable and good.

Description of drawings

Fig. 1 is an overall functional block diagram of a wireless sensor-based railway train operating environment monitoring device provided by an embodiment of the present invention;

Fig. 2 is a specific functional block diagram of a wireless sensor-based railway train operating environment monitoring device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to Figures 1-2, an embodiment of the present invention provides a wireless sensor-based railway train operating environment monitoring device, which includes: multiple station operating environment monitoring terminals 1, multiple in-vehicle operating environment monitoring terminals 2, and a train monitoring center 3 and the ZigBee wireless communication network 4, the station operating environment monitoring terminal 1 and the in-vehicle operating environment monitoring terminal 2 all communicate wirelessly with the train monitoring center 3 through the ZigBee wireless communication network 4.

The above-mentioned technical scheme realizes the monitoring of the railway train station environment and the internal environment of the train through the ZigBee wireless communication network (i.e. wireless sensor network), wherein each station operating environment monitoring terminal 1 and each in-vehicle operating environment monitoring terminal 2 are wireless sensors As the collection node, the train monitoring center 3 is a wireless sensor convergence node, which realizes wireless communication through a wireless sensor network. That is, the wireless sensor network is composed of sensor nodes with perception, computing and communication capabilities, and the large-scale monitoring network is composed of collection nodes and convergence nodes, and finally transmits data to the train monitoring center 3 .

Specifically, the station operation environment monitoring terminal 1 is used to monitor the environmental data in the train station, and according to the image information and sound information at different positions in the train station, by extracting image features and sound features, determine the location of the train station. The density of people at different locations, safety information and signal-to-noise ratio information. The in-vehicle operating environment monitoring terminal 2 is used to monitor the environmental data in the train, and determine the pollutant category and pollution degree according to the pollutant odor concentration in different monitoring areas. The train monitoring center 3 is used to broadcast the evacuation and deployment of crowds by voice according to the principle of proximity according to the density of people; it is used to broadcast station safety warnings by voice according to the safety information of passengers; The voice is used to broadcast the noise control of the station; and it is used to broadcast the pollutants in the car through the voice according to the pollutant category and pollution degree.

The above technical solution monitors the image information at different positions in the train station, extracts the image features and obtains the passenger flow density and ride safety information. According to the crowd flow density information at each boarding entrance, the crowd can be evacuated and allocated according to the principle of proximity. To ensure that passengers can get on the train before the train starts, it can be judged whether there is an accident during the flow of people according to the contour shape of the flow of people in the station and the movement of people, so that the accident can be dealt with in time, ensuring that passengers get on the train safely and effectively. Further, by monitoring the sound information at different positions in the train stop station, the signal-to-noise ratio information is determined according to the broadcast sound and the noise of the crowd. When the noise of the crowd is large, it can urgently and continuously broadcast the voice prompt to reduce the noise, thus ensuring The boarding process at the station is carried out in an orderly and safe manner. At the same time, through the effective monitoring of the types of pollutants in the train (odor, musty smell, fishy smell) and various types of concentrations, when the concentration of pollutant gas reaches the preset concentration, a reminder will be given to remove pollutants in the train, thus ensuring long-term maintenance. The environment of the time train ride is comfortable and good.

Further, a plurality of station operating environment monitoring terminals 1 are respectively arranged at different positions on the top of the train, and the station operating environment monitoring terminal 1 includes: a first acquisition module 11, and the first acquisition module 11 includes: an image acquisition unit 111, an audio acquisition unit unit 112 and the environment collection unit 113 outside the vehicle.

Wherein, the image collection unit 111 is used to collect the image information in the train station; the audio collection unit 112 is used to collect the sound information in the train station; the sound information includes: broadcasting sound information, crowd noise information; Acquisition unit 113 is used to collect temperature, brightness, smog concentration and meteorological data in the train stop station, and the external environment acquisition unit 113 includes: a first temperature sensor, a smog sensor and a meteorological sensor, and the meteorological sensor includes: a device for measuring relative humidity Capacitive sensors and ultrasonic sensors to measure wind speed.

Further, the station operating environment monitoring terminal 1 also includes: a passenger flow density determination module 12 , a ride safety determination module 13 and a signal-to-noise ratio determination module 14 .

Among them, the crowd density determination module 12 is used to determine the crowd density at different positions in the station through the distribution of the number of avatars according to the extracted image features; The shape and human body movement state in the shape of the outline of the flow of people determine the safety status of passengers in the station; the signal-to-noise ratio determination module 14 is used to determine the signal in the station by broadcasting the decibels of the sound and the decibels of the crowd's voice according to the extracted sound features. noise ratio.

Further, a plurality of in-vehicle operating environment monitoring terminals 2 are arranged in sections of the train. The in-vehicle operating environment monitoring terminals 2 include: a second acquisition module 21, and the second acquisition module 21 includes: an air quality monitoring unit 211, a second temperature sensor 212 and humidity sensor 213.

Among them, the air quality monitoring unit 211 is used to monitor the particle concentration and pollutant odor concentration inside the train; the second temperature sensor 212 is used to monitor the temperature information in the train; the humidity sensor 213 is used to monitor the humidity information in the train. The air quality monitoring unit 211 includes: a particle concentration sensor and a pollutant odor concentration detection unit; the particle concentration sensor includes a sensor with TSP, PM10, PM5, PM2.5 or PM1 concentration specifications.

Further, the in-vehicle operating environment monitoring terminal 2 also includes: a pollutant category determination module 22 and a pollution degree determination module 23;

Wherein, the pollutant category determination module 22 is used to judge the monitored pollutant gas category through the pollutant category detection unit; wherein, the pollutant gas category includes: odor, musty smell, fishy smell, etc.; the pollution degree determination module 23 is used to It is used to judge the concentration of the monitored pollutant gas by the pollutant concentration detection unit.

Further, the train monitoring center 3 includes: a personnel evacuation deployment reminder module 31 , a safety early warning module 32 and a pollutant removal reminder module 33 .

Among them, the personnel evacuation allocation reminder module 31 is used to remind the personnel evacuation allocation according to the principle of proximity according to the density of people at the entrance of each carriage when the ride time reaches the preset time; the safety early warning module 32 is used for when the train stops. The outline shape is the shape of "crowd watching" (that is, the shape surrounded by crowds, which is different from the shape of normal people flow) and the inner shape of "crowds watching" has "fighting" movements (that is, large movements of arms and legs, which are different from normal people's walking movements) When the time comes, the safety warning broadcast at the corresponding position in the station is carried out; the pollutant removal reminder module 33 is used to carry out the pollutant removal reminder in the vehicle when the pollutant gas concentration reaches the preset concentration.

To sum up, the present invention realizes the innovative monitoring of the operating environment of railway trains from two aspects of monitoring the flow of people at the station and monitoring the pollutants inside the trains, thereby ensuring safe and effective boarding and comfortable rides for passengers.

The above disclosures are only a few specific embodiments of the present invention, and those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, provided that these modifications and modifications of the present invention belong to the rights of the present invention The present invention also intends to include these modifications and variations within the scope of the requirements and their technical equivalents.

Claims (8)

1. a kind of railroad train operating environment monitoring device based on wireless sensor characterized by comprising multiple station fortune Seek environmental monitoring terminal (1), multiple interior operating environment monitorings terminal (2), train monitoring center (3) and ZigBee wireless communication Network (4), station operating environment monitoring terminal (1) and interior operating environment monitoring terminal (2) are by described ZigBee cordless communication network (4) and the train monitoring center (3) wirelessly communicate；

The station operating environment monitors terminal (1), for monitoring the environmental data in train stop station, and is stopped according to train Image information and acoustic information at different location in station determine that train stops by extracting image feature and sound characteristic Density of stream of people, ride security information and noise percent information at different location in station；

Car operating environment monitoring terminal (2), for monitoring the environmental data in train, and according in different monitoring regions Pollutant odorousness determines pollutant classification and pollution level；

The train monitoring center (3), for carrying out crowd according to nearby principle by voice and evacuating by bus according to density of stream of people Allotment casting；For carrying out the casting of station safe early warning by voice according to security information of riding；For being believed according to noise ratio Breath carries out station noise control casting by voice；And for being carried out by voice according to pollutant classification and pollution level In-vehicle exposure object removes casting.

2. the railroad train operating environment monitoring device based on wireless sensor as described in claim 1, which is characterized in that more A station operating environment monitoring terminal (1) is separately positioned at the different location at the top of train, and ring is runed at the station It includes: the first acquisition module (11) that border, which monitors terminal (1), and first acquisition module (11) includes: image acquisition units (111), audio collection unit (112) and vehicle external environment acquisition unit (113)；

Described image acquisition unit (111), for acquiring the image information in train stop station；

The audio collection unit (112), for acquiring the acoustic information in train stop station；The acoustic information includes: Broadcast casting acoustic information, crowd noise information；

The vehicle external environment acquisition unit (113), it is gentle for acquiring temperature, brightness, smokescope that train is stopped in station Image data.

3. the railroad train operating environment monitoring device based on wireless sensor as claimed in claim 2, which is characterized in that institute Stating vehicle external environment acquisition unit (113) includes: the first temperature sensor, smoke sensor device and meteorological sensor；Wherein, the gas Image sensor includes: the capacitance sensor of Relative Humidity Measuring and the ultrasonic sensor of measurement wind speed.

4. the railroad train operating environment monitoring device based on wireless sensor as described in claim 1, which is characterized in that institute Station operating environment monitoring terminal (1) is stated to include: density of stream of people determining module (12), completely determine module (13) and noise by bus Ratio-dependent module (14)；

The density of stream of people determining module (12) determines vehicle by the distribution of head portrait quantity for the image feature according to extraction Density of stream of people in standing at different location；

It is described to completely determine module (13) by bus, for the image feature according to extraction, taken turns by stream of people's chamfered shape and the stream of people Human action state in profile shape determines safe condition of riding in station；

The noise ratio determining module (14), for the sound characteristic according to extraction, by the decibel of broadcast casting sound and The decibel of crowd's sound determines noise ratio in station.

5. the railroad train operating environment monitoring device based on wireless sensor as described in claim 1, which is characterized in that more A described interior operating environment monitoring terminal (2) subregion is laid in inside train, car operating environment monitoring terminal (2) packet Include: the second acquisition module (21), second acquisition module (21) include: air quality monitoring unit (211), second temperature biography Sensor (212) and humidity sensor (213)；

The air quality monitoring unit (211), for monitoring train internal particle object concentration, pollutant odorousness；

The second temperature sensor (212), for monitoring temperature information in train；

The humidity sensor (213), for monitoring humidity information in train.

6. the railroad train operating environment monitoring device based on wireless sensor as claimed in claim 5, which is characterized in that institute Stating air quality monitoring unit (211) includes: particle concentration sensor and pollutant odorousness detection unit；Wherein, institute State the sensor that particle concentration sensor includes TSP, PM10, PM5, PM2.5 or PM1 concentration specifications.

7. the railroad train operating environment monitoring device based on wireless sensor as described in claim 1, which is characterized in that institute Stating interior operating environment monitoring terminal (2) includes: pollutant category determination module (22) and pollution level determining module (23)；

The pollutant category determination module (22), for the contaminant gases by the judgement monitoring of pollutant classification detection unit Classification；Wherein, the contaminant gases classification includes: stink, musty, fishy smell；

The pollution level determining module (23), it is dense for the contaminant gases by the judgement monitoring of pollutant concentration detection unit Degree.

8. the railroad train operating environment monitoring device based on wireless sensor as described in claim 1, which is characterized in that institute Stating train monitoring center (3) includes: evacuating personnel allotment reminding module (31), safe early warning module (32), noise control prompting Module (33) and pollutant remove reminding module (34)；

The evacuating personnel deploys reminding module (31), is used for when riding time reaching preset time, according to each compartment mouth people Current density carries out evacuating personnel allotment according to nearby principle and reminds；

The safe early warning module (32), for when train stop station in stream of people's chamfered shape be " stream of people surrounds and watches " shape and When " stream of people surrounds and watches " interior shape has " fighting " movement, the safe early warning casting of corresponding position in station is carried out；

The noise control reminding module (33), for improving decibel and being held when voice broadcast sound is less than crowd noise It is continuous to reduce noise casting；

The pollutant removes reminding module (34), interior dirty for carrying out when contaminant gases concentration reaches preset concentration It contaminates object and removes prompting.