CN206021565U

CN206021565U - A kind of electronic bus stop board

Info

Publication number: CN206021565U
Application number: CN201620858942.8U
Authority: CN
Inventors: 张政
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2017-03-15
Anticipated expiration: 2026-08-02

Abstract

A kind of electronic bus stop board, including data center and electronic bus stop board, both are coupled by the network equipment, data center is served as by the server of service data management program, electronic bus stop board by CPU, show vehicle from our station station number 8 sections of luminous digital display modules or LED display module, display advertisement and other video information LCDs, show announcement information LED information display screens and interconnection device constitute, it is characterised in that：Including current sensing means, the device is connected to 8 sections of luminous Digital modules or LED module, LED information display screens and LCDs feeder ear, by detecting that the device passes through electric current, CPU may determine that the normal and malfunction of corresponding display module, display screen, and the state for detecting, data center is sent to by interconnection device.For expanding the scope of detection electric current, current sensing means can receive CPU control codings, the multiplication factor of control detection electric current.

Description

A kind of electronic bus stop board

Art

The utility model is related to a kind of electronic bus stop board, refers in particular to the electronic bus station that energy remote detection shows failure Board.

Background technology

At present, electronic bus stop board includes data center and bus electronic stop board, and both are coupled by the network equipment, number Served as by the server of service data management program according to center, electronic bus stop board is by CPU, display vehicle from the station number of our station 8 sections of luminous digital display modules or LED display module, display advertisement and other video information LCDs, display notify letter The LED information display screens of breath and interconnection device composition, it is impossible to remotely learning whether these display devices are working properly in time, energy Normal display.Need people to look into scene can just pinpoint the problems, as bus station has a very wide distribution, check once very not Just, therefore go wrong and be not easy discovery in time, show that mistake is difficult to be corrected in time.

Content of the invention

In order to overcome existing electronic bus stop board remotely can not learn whether its display portion normally can show in time Deficiency, the utility model provides a kind of electronic bus stop board including current sensing means, and the electronic stop plate conveniently can be known The position of the display module of failure.

The utility model solves the technical scheme adopted by its technical problem：A kind of bus electronic stop board, including number According to center and bus electronic stop board, both are coupled by the network equipment, service of the data center by service data management program Device is served as, and electronic bus stop board shows mould by CPU, display vehicle from 8 sections of luminous digital display modules or LED of the station number of our station Block, display advertisement and other video information LCDs, the LED information display screens for showing announcement information and interconnection device group Into, it is characterised in that：Including current sensing means, the device is connected to the feeder ear of 8 sections of luminous Digital modules or LED module, inspection Flow measurement crosses the electric current of 8 sections of luminous Digital modules or LED module；The field of 8 sections of luminous Digital modules that CPU is specified in control bright While specified point (or the specified multiple spot) light on and off of the LED module for going out or specifying in control, gather what current sensing means passed through Electric current, by analyzing phase induced current and the current deviation for normally showing, so that judge the normal and failure shape of corresponding display module State, and the state for detecting, data center is sent to by interconnection device.

The current sensing means can receive CPU control codings, and the multiplication factor of control detection electric current, to expand detection electricity The scope of stream.

Above-mentioned bus electronic stop board, also includes that second current sensing means, the device are connected to LED information display screens Feeder ear is judged the normal and malfunction of LED information display screens, and the state for detecting is led to by the size of analysis electric current Cross interconnection device and be sent to data center.

Above-mentioned bus electronic stop board, also includes that the 3rd current sensing means, the device are connected to LCDs confession Electric end, while the LCDs connects also by relay contact, relay contact connecting and disconnecting are controlled by CPU controls, CPU When relay contact processed is connected, LCDs is powered, and at this moment CPU gathers the electric current of current sensing means, judges that LED information shows The normal and malfunction of display screen, and the state for detecting is sent to data center by interconnection device.

In order to expand the scope of detection electric current, quick kinetic measurement judges that current sensing means of the present utility model can connect Receive CPU to control to encode, the multiplication factor of control detection electric current adjusts the size of output valve so as to adapt to detection electric current larger Excursion.CPU obtains actual numerical value according to control coding come corrected Calculation after collecting data, then is judged.

The beneficial effects of the utility model are the electric currents of the display module that can pass through to obtain current sensing means measurement Value, is compared with normal value, can learn the normal and failure of display module, and upload to data center, so as to long-range Know the quality of display module, the normal and failure purpose that can find display module in time is checked to reach the scene of not using.

Similarly LED information display screens, LCDs can also pass through obtain current sensing means current value with just The method that constant value is compared, learns which normally and failure, and uploads to data center, can to reach that the not scene of using checks Failure purpose is found in time.

Description of the drawings

With reference to the accompanying drawings and examples the utility model is further illustrated.

Fig. 1 is station board detecting system block diagram of the present utility model.

Fig. 2 is another station board detecting system block diagram of the present utility model.

Fig. 3 is LED information display screens detecting system block diagram of the present utility model.

Fig. 4 is that current sensing means of the present utility model accesses LCDs block diagram.

Fig. 5 is current sensing means embodiment circuit diagram of the present utility model.

Fig. 6 is another circuit diagram of current sensing means embodiment of the present utility model.

Fig. 7 is that current sensing means of the present utility model accesses LCDs embodiment circuit diagram.

Fig. 8 is that current sensing means of the present utility model accesses another circuit diagram of LCDs embodiment.

Specific embodiment

A usual electronics website is reached by many bus, is configured one piece of (2) 8 sections of luminous Digital module per bus or can be shown Show that 2 digital LED modules, as light emitting module, as the presentation of information that will reach vehicle, select control by CPU by light on and off System, shows designated value.

In FIG, power supply V+ ends are arrived by 8 sections of display module fields, selecting switch, current sense detection means Ground, multiple 8 sections of display module fields connect together, and select that by selecting switch which field is connected, selecting switch and each word The connecting and disconnecting of section, by CPU controls；CPU sends display control code, controls any one word in 8 sections of display module any blocks Whether section is connected, and controls whether to light and does not light, and if connecting, voltage is added in the field of 8 sections of display modules, the field Should light, under normal circumstances, current sense detection means should detect a normal electric current, in this way normal electricity Stream, then it represents that the field is working properly, if not being normal electric current, then it represents that the field is faulty, current sense detection means The electric current for detecting is exported to CPU after analog-to-digital conversion, so as to the number that CPU can be exported by current sense detection means According to obtaining the state of field, after CPU obtains the state of field, proceed remaining each section detection of remaining block, should Block detection finish, equally carry out next piece, so the state of all pieces of sections is combined as the state the station board, Data center is uploaded to by common networking module, data center so as to immediately obtain station board display portion be normal or Failure, is conveniently immediately safeguarded.

By the current sensing means installed additional on its power supply circuits, when CPU sends corresponding display data, collection electricity The electric current that flow detection device is detected, and the display data due normal value at normal display is compared, you can judge The quality of corresponding module.

As CPU need to detect certain module of certain bus configuration fine or not when, first choose the module, other unchecked moulds Block does not light, i.e., the electric current produced by unchecked module is 0, and the only module sends show code come correspondingly according to CPU Luminous, and corresponding electric current is produced, such as control the module all light and show 8 words, then correspondingly compare the electric current normal value for showing 8 words, If the module failure is not described in normal range (NR), then, such as further control a certain field of 8 sections of luminous Digital modules bright other Go out, its current value is measured by current sensing means at this moment, such as current value judges that near normal value, then which is normal, can be just Often show；Normal value is such as much smaller than, near such as 0, be can determine whether as open circuit fault, it is impossible to normal display；If much larger than normal value Can determine whether it is that short trouble normally can not show.

CPU can have been detected after all modules of a station board configuration by above-mentioned method, then detects next station board, inspection State after survey, uploads to data center by network, so that station board attendant can learn this in time in data center Whether website display portion is normal.

In fig. 2, power supply V+ ends pass through LED display module, selecting switch, current sense detection means to ground, many Individual LED display module connects together, and is selected the connecting and disconnecting of which light emitting diode of which module by selecting switch, The connecting and disconnecting of the dot matrix of selecting switch and LED display module, by CPU controls；CPU sends display control Code, control LED display module dot matrix what a little whether connect, control whether to light and do not light, such as if connection Voltage is added in the dot matrix of LED display module, and the point should light, under normal circumstances, current sense detection dress Put and detect a normal electric current, in this way normal electric current, then it represents that the point is working properly, if not being normal Electric current, then it represents that the point is faulty, and current sense detection means exports the electric current for detecting to CPU after analog-to-digital conversion, Obtaining the state of the point, CPU obtains the state of the point to the data that can be exported by current sense detection means so as to CPU Afterwards, proceed the detection of remaining each point of remaining block, the block detection is finished, and equally carries out next piece, so all The state of block section combine as the state the station board, data center is uploaded to by common networking module, number It is normal or failure according to center so as to immediately obtain station board display portion, convenient is immediately safeguarded.LED for convenience The detection of display module, it is possible to use the mode that multiple spot is lighted simultaneously is detected.LED display module a line one such as to a station board Detect capablely.

In figure 3, power supply V+ ends pass through LED information display screens, selecting switch, current sense detection means to ground, LED information display screens are typically the combination of multiple LED modules, and identical with LED display module displaying principle, detection method is the same.

In the diagram, the V+ ends of voltage pass through relay contact, LCDs, current sensing means to ground, and relay is touched By CPU controls, during CPU control relay contactings, LCDs is powered for point connecting and disconnecting, at this moment CPU collections electric current The electric current of detection means, usual LCDs have a normal current range, CPU to gather current sensing means when normally showing The electric current for passing through can be determined that LCDs failure if far beyond this scope.The electric current that such as open circuit fault is then gathered It is worth for 0 or so, so as to obtain, LCDs is normal or malfunction, and uploads to center.

CPU can carry out above-mentioned inspection in power-on self-test, it is also possible to after center instruction is connected to carry out above-mentioned inspection, also Dynamic detection is carried out in operation can.

The method of dynamic detection is：For 8 sections of display modules, CPU can be better bright by the hop count storage that lights in advance Electric current normal value, when the value for being shown on request, calculates the hop count that this display need to be lighted, and inquiry is calculated lights this The electric current normal value of a little hop counts, carries out display control the value for requiring to show, while the electric current of Real-time Collection current sensing means Value, is compared the current value of collection with above-mentioned electric current normal value, you can whether normal judged.Again by common networking Module uploads to data center, and data center is normal or failure so as to immediately obtain station board display portion, convenient instant Safeguarded.

Similarly for the station board shown with LED module, CPU can prestore the electric current normal value that each type matrix is lighted, When the value for being shown on request, calculate this display and need to light type matrix, inquiry is calculated just is lighting these type matrix electric currents Constant value, carries out display control the value for requiring to show, while the current value of Real-time Collection current sensing means, the electric current of collection Value is compared with above-mentioned electric current normal value, you can whether normal judged.Data are uploaded to by common networking module again Center, data center are normal or failure so as to immediately obtain station board display portion, are conveniently immediately safeguarded.

LED information display screens are typically the combination of multiple LED modules, detection side identical with LED display module displaying principle Method is the same.

In dynamic operation, the current value of timing acquiring current sensing means is checked whether in normal model LCDs In enclosing, so as to be made instantly available, LCDs is normal or malfunction.Data center is uploaded to by common networking module again, Data center is normal or failure so as to the LCDs part for immediately obtaining station board, is conveniently immediately safeguarded.

Current sensing means is by current sense resistor R0, amplifier T1, analog-to-digital conversion and necessary resistance group in Figure 5 Into detection resistance R0 changes the electric current flow through by 8 sections or LED display module into voltage, is amplified by amplifier, after analog-to-digital conversion Data acquisition is carried out by CPU, as the resistance of detection resistance R0 is fixed, therefore can easily be calculated and be flow through current sense resistor The electric current of R0, due to being serially connected so as to easily learning by 8 for current sense resistor R0 and 8 sections or LED display module Section or the current value of LED display module, and the current value, can be switched by CPU control selections select to show the section for specifying 8 sections or Whether LED specified points (or multiple spot) are produced, it is possible to accurately judge to specify 8 sections of section or LED specified points normal.

Current sensing means in figure 6 increased a simulant electronic switch to control the gain of amplifier, connect in Fig. 6 One path analoging switch.Such as one in tetra- bilateral analog switch of CD4066, which is input into whether to connect with output and controls pin by CPU Level determine, when CPU control pin level be low level when, switch obstructed, at this moment multiplication factor maximum；When CPU controls pin Level when being high level, switch connection, at this moment the multiplication factor of amplifier reduce certain multiple, when CPU collects electric current The current value of detection means, is multiplied by corresponding multiple when calculating actual current.So can be by CPU according to the section for lighting 8 sections The type matrix of LED module is lighted in position, selects corresponding gain, prevents from overflowing.Illustrate to have connect a path analoging switch in Fig. 6, actually may be used Multichannel is connect, this is that those of ordinary skill is attainable.

When the electric current that the conversion of detection resistance R0 is flow through by 8 sections or LED display module, LED information display screens, electricity is changed into Pressure, is amplified by amplifier, and analog-to-digital conversion carries out data acquisition by CPU, calculates the electric current for flowing through current sense resistor R0, and is somebody's turn to do Current value, is to be switched the section or the generation of LED specified points for selecting to specify 8 sections by CPU control selections, and its normal value is can to obtain in advance Know, it is possible to accurately judge to specify 8 sections of section or LED specified points whether normal.

In the figure 7, when the electric current that the conversion of detection resistance R0 is flow through by LCDs, voltage is changed into, is put by amplifier Greatly, analog-to-digital conversion carries out data acquisition by CPU, calculates the electric current for flowing through current sense resistor R0, if the electric current is in liquid crystal In the current range that display screen normally shows, then judge that LCDs shows normally；Current sensing means such as CPU collections leads to The electric current that crosses then can be determined that LCDs failure far beyond this scope.For example when the current value of collection is 0, and now Supply relay is connected via CPU controls, then can be determined that LCDs has open circuit fault.Liquid so can be obtained in time Crystal display screen is normal or malfunction.

In fig. 8, relative to Fig. 7 in current sensing means increased a simulant electronic switch to control amplifier Gain, its are input into whether to connect with output and are determined by the level of CPU control pin, when the level that CPU controls pin is low level, open Pass is obstructed, and at this moment multiplication factor is maximum；When the level that CPU controls pin is high level, switch connection, the at this moment amplification of amplifier Multiple reduces certain multiple, is multiplied by corresponding times when CPU collects the current value of current sensing means, calculates actual current Number.Other are illustrated with Fig. 6.

Claims

1. a kind of electronic bus stop board, including data center and electronic bus stop board, both are coupled by the network equipment, in data The heart is served as by the server of service data management program, electronic bus stop board by CPU, show vehicle from the station 8 sections of number of our station Luminous digital display module or LED display module, the LCDs of display advertisement video information, the LED for showing announcement information Information display screen and interconnection device composition, it is characterised in that：Including current sensing means, the device is connected to 8 sections of luminous number moulds Block or the feeder ear of LED module, detection flow through the electric current of 8 sections of luminous Digital modules or LED module；CPU is in control to specify 8 sections While the specified point or specified multiple spot light on and off of the light on and off of the field of luminous Digital module or the LED module that specifies in control, adopt The electric current that current collection flow detection device passes through, by analyzing phase induced current and the current deviation for normally showing, corresponding aobvious so as to judge Show the normal and malfunction of module, and the state for detecting, data center is sent to by interconnection device.

2., by a kind of electronic bus stop board described in claim 1, its described current sensing means can receive CPU control codings, The multiplication factor of control detection electric current, to expand the scope of detection electric current.

3. a kind of electronic bus stop board described in claim 1 or 2, is further characterized in that：Including second current detecting dress Put, the device is connected to LED information display screen feeder ears.

4. a kind of electronic bus stop board described in claim 1 or 2, is further characterized in that：Including the 3rd current detecting dress Put, the device is connected to LCDs feeder ear, while contact portion of the LCDs also with relay, relay contact By CPU controls, during CPU control relay contactings, LCDs is powered for connecting and disconnecting.