CN104215823A - Vehicular battery safety monitoring system - Google Patents
Vehicular battery safety monitoring system Download PDFInfo
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- CN104215823A CN104215823A CN201410394911.7A CN201410394911A CN104215823A CN 104215823 A CN104215823 A CN 104215823A CN 201410394911 A CN201410394911 A CN 201410394911A CN 104215823 A CN104215823 A CN 104215823A
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Abstract
The invention discloses a vehicular battery safety monitoring system. The vehicle battery safety monitoring system comprises a battery monitoring unit, a communication unit, a sensing monitoring unit, an alarm unit, a communication line and train lines. The battery monitoring unit is used for measuring work condition parameters of a vehicular battery and transmitting to the communication unit, and the communication unit transmits the work condition parameters to the alarm unit through the communication line. The sensing monitoring unit is used for detecting environmental physical quantities of the working environment of the vehicular battery and transmitting the same to the alarm unit through the train lines. The alarm unit is used for generating and outputting alarm information according to the received environmental physical quantities and the work condition parameters. In the vehicular battery safety monitoring system, structure-different fault-tolerant mechanisms are designed in a sampling link, a data transmission link and an alarm link, so that fault or fault risk of the battery can be reliably monitored, alarm can be sent in time, reliability in battery safety monitoring is remarkably improved, and safety of the vehicle and passengers is guaranteed in emergency.
Description
Technical field
The present invention relates to a kind of Vehicular battery safety monitoring system.
Background technology
Existing a lot of rail traffic vehicles, it is all equipped with accumulator, for providing backup.When equipment normally runs, vehicle is introduced from contact net and is exchanged or direct supply, and then produces traction power by trailer system, produces accessory power supply, the such as accessory power supply of direct current 110V by auxiliary inversion system.When contact net power-off or train auxiliary inversion system jam and cannot for train direct current supply is provided time, accumulator will provide reliable back-up source for train, in order to support that compartment Emergency Light, air-conditioning emergency ventilation, Train Control and communication system normally work.Therefore, the reliably working of accumulator has become the basic guarantee of vehicle especially train safe operation, and direct relation occupant personal safety and traffic safety, need reliably to keep high availability.
For urban railway transit train, train accumulator failure may make output voltage on the low side, and provide electricity not enough, and then cause train pantograph to rise, train cannot normally run, and directly affects circuit capacity.When train travels in subterranean tunnel, if contact net electric power system breaks down, train mismatched contact inputs, and train accumulator can only be relied on to provide emergency lighting and ventilation for compartment.If train accumulator exists Loss of power failure, then the duration of emergency lighting and ventilation gently then shortens, heavy then directly lose.When not having emergency lighting, passenger is difficult to effective rapid evacuation railway carriage or compartment, and stays in compartment, and owing to not having enough ventilations, passenger also has the risk of death by suffocation.On the other hand, if train accumulator self exists partial short-circuit fault, can produce the phenomenon of slowly heating, heat accumulation may cause train catching fire to a certain extent, causes great casualties and property loss.Therefore, need effective lifting car to carry the availability of accumulator, strengthen the safety monitoring level to it, improve travel safety, particularly security under emergency conditions.If effective storage battery safety monitoring system can be equipped with, will significantly improve this problem.
In the prior art, some patents relating to safety monitoring are had in rail traffic vehicles accumulator field.The invention of application number CN201310235495 describes a kind of lithium battery group safety monitoring system based on GPRS module, and this system comprises: sampling module, and it is arranged in battery pack system; Gateway, it connects sampling module output terminal; GPRS module, it connects gateway by CAN, and by the long-range output of gprs system; Batteries management system, it connects electric battery and carries out Real-Time Monitoring, and is connected by CAN with gateway; Monitoring central server, its telecommunication connects GPRS module; Display terminal, its output terminal connecting gateway receives monitor message.This invention can make maintenance management personnel understand each parameter and the running status of battery pack system in real time, decreases workload and improves work efficiency, improve the safe reliability of lithium battery systems.
A kind of bullet train accumulator warning system of the disclosure of the invention of application number CN201310429399, comprise data interface unit, the output terminal of described data interface unit is connected with the input end of controlled processing unit, the output terminal of described controlled processing unit respectively with local data store, train supervision display unit is connected with data judge module, the output terminal of described data judge module is connected with the input end of train supervision display unit and remote alarms data processing unit respectively, the output terminal of described remote alarms data processing unit is connected with GSM-R communication system, described GSM-R communication system is connected with ground control centre display terminal.The technical scheme of this invention, effectively raises the real-time of the long-distance alarm of accumulator precarious position, low bandwidth, economy, when taking compared with low-resource, achieves dangerous timely long-distance transmissions interlock.
The invention of application number CN201110375403 describes a kind of city rail train storage battery temperature monitoring alarm and control method, many places temperature acquisition point is set on accumulator surface, overtemperature benchmark is set in scm software, gather each point temperature signal, compare with overtemperature benchmark, judge that whether temperature signal is normal simultaneously, then judge that detection system or circuit break down and failure logging is sent into train monitoring system without temperature signal, temperature signal normally then carries out data conversion and each point real time temperature is sent into train monitoring system display, stores.Battery temp value is carried out record, if overtemperature, is reported to the police by train monitoring system, and cut off accumulator charging/discharging circuit, to ensure the normal work of accumulator, improve service lifetime of accumulator.
A kind of rail transit train battery management system of the disclosure of the invention of application number CN201320835396, to manage the electric battery on train and management information be sent to train control, comprise multiple from control unit, from one of them battery of control unit controls electric battery, to gather voltage and the temperature of cell; One main control unit, main control unit is all connected, in order to gather total voltage and the total current of electric battery with from any one controlling unit; CAN, for being connected from control unit with main control unit, will also comprise a rigid line faulty circuit and a rigid line.This battery management system can not only be monitored in real time to electric battery, and when battery system or other parts of train occur that catastrophic failure needs to stop in emergency, uses rigid line fault to be reliable mode.
The invention of application number CN200710118054 describes a kind of vehicle mounted battery monitor system, comprise central processing module and some detection modules, it directly links the AD entrance of central processing module single-chip microcomputer, the digital signal that temperature collect module exports directly is connected with the I/O port of central processing module single-chip microcomputer and carries out communication, the output I2C bus of real-time time module communicates with other devices, the output of real-time time module is connected with the I2C bus interface of single-chip microcomputer, and CAN communication module is directly connected with the CAN interface of single-chip microcomputer.Central processing module detects battery temperature, voltage, electric current, and carry out integration to battery charging and discharging electricity, estimating battery residual capacity, when battery remaining power estimated value is lower than threshold value, central processing module sends warning information.
The invention of application number CN201310370619 relates to a kind of electrokinetic cell safety monitoring device, it is characterized in that on an ECU, be connected to the circuit such as temperature detection, oxygen concentration detection, density of hydrogen detection, air pressure detection, GPS/GPRS communication, it combines use with existing power battery management system, as the important supplement of battery management system, the considerable safety potential faults of electrokinetic cell can be detected and make early warning, fault handling can be carried out according to the fault handling standard of setting simultaneously.
A kind of battery cell monitoring information transferring method of accumulator system of the disclosure of the invention of application number CN103633738A, carries out the process of classification and layering: divide two classes by battery cell monitoring information, i.e. telemetry intelligence (TELINT) and warning information to battery cell monitoring information; For telemetry intelligence (TELINT), to the priority level that warning information configuration is higher, in the engineering transmitted and process, warning information all comparatively telemetry intelligence (TELINT) is given preferential treatment to; Battery cell monitoring information is divided into battery cell, battery module and battery pile level information; The transmission path of battery cell monitoring information is divided into from lower to upper battery cell administrative unit, battery module managing unit, battery management system, the background monitoring main frame of accumulator system and higher level's master supervisory system these five layers; This invention can meet capacity requirement effectively can improve battery cell monitoring information real-time again.
The invention of application number CN201210256401 describes a kind of battery cell monitoring and protective device and System and method for thereof; this battery cell monitoring and protective device and battery module with the use of, battery cell monitoring and protective device comprise the control module of a sensing module and an electrical connection battery module and sensing module.Control module controls battery module according to the sensing result of wherein at least one sensing cell and whether powers, and in time occurring abnormal, effect that the electric power cutting off battery module in time exports.
Although above-mentioned prior art all relates to the monitoring for battery and ensures the normal of running status to a certain extent, as long as but it should be noted that prior art when carrying out safety monitoring to accumulator wherein any one link break down whole monitoring system will be caused to lose efficacy.Major part effect due to accumulator itself is just the guarantee for case of emergency, when these cases of emergency occur, be difficult to guarantee that the equipment that in safety monitoring, each link relates to can normally work, this just makes existing storage battery safety monitoring system or similar system still be difficult in actual use ensure that accumulator reliably can tackle the appearance of emergency condition.
Summary of the invention
The technical problem to be solved in the present invention likely lost efficacy in some cases for the monitoring of battery condition to overcome prior art, the reliability of monitoring is still not high enough, thus rail vehicle in case of emergency needs still there is defect compared with major break down risk and potential safety hazard when using accumulator, proposes a kind of Vehicular battery safety monitoring system.
The present invention solves above-mentioned technical matters by following technical proposals:
The invention provides a kind of Vehicular battery safety monitoring system, its feature is, comprising: a battery monitor unit, a communication unit, a sensor monitoring unit, are warned unit, order wire and train-line.
This battery monitor unit is used for the duty parameter of measuring vehicle battery and the duty parameter recorded is sent to this communication unit, and duty parameter comprises at least one in following parameter: the monomer voltage of Vehicular battery, total voltage, electric current, dump energy, insulation resistance and temperature.
This communication unit is used for the duty parameter received to transfer to this unit of warning by order wire.
This sensor monitoring unit is for detecting the environmental physics amount of working environment residing for Vehicular battery, and the environmental physics amount detected is transferred to this unit of warning by train-line, environmental physics amount comprises at least one in following parameter: the electric current presetting Nodes in smokescope, temperature, circuit.
This unit of warning generates alert messages for the duty parameter according to the environmental physics amount received and battery, and exports alert messages.
Wherein, train-line is the circuit for transmitting related electric instruction or information in existing train, train-line only needs to be wire from its function, can be understood as in train for transmitting the particular lead of related electric steering order in the form of electric current at this.Order wire then allows to adopt certain existing communication protocol with the mode signal transmission of the communications of data or data.Order wire and train-line are independently two class wires, and the principle of its signal transmission or data also exists a great difference, and namely both form isomery redundancy, this two impact due to some fault or certain environment is paralysed simultaneously or malfunctioning possibility minimum.For example, can adopt the form of serial data communication, through order wire, duty parameter is sent to terminal of warning.In the concrete enforcement of data communication, the present invention can adopt the secure communication protocols meeting associated international standards or national standard, thus effectively can defend the errors of transmission such as frame losing, error code, frame sequence mistake, realizes the credible delivery of data.This battery monitor unit can be provided near the battery of train, gathers the parameter relevant with cell operating status.And sensor monitoring unit is for detecting the environmental physics amount of working environment residing for Vehicular battery, specifically, different sensors can be set for each different physical quantity.
Ideally, terminal of warning can obtain all duty parameters and all environmental physics amounts that detect and obtain, this makes it possible to the state comprehensively grasping train battery.But it should be noted that and just can judge that can train battery normally work to a certain extent based on one or more in these parameters or physical quantity.The present invention can when data communication be broken down and is lost information transfer capability; still can transfer to detecting the partial parameters obtained terminal of warning by train-line; based on this part parameter, be still enough to know whether whether the state of train battery normally can be used in other words.Therefore, even if at the members of safety monitoring system during malfunctioning or fault, still can normally work reliably monitoring substantially that realize for battery.The design of such isomery fault tolerant mechanism, can stop in emergency circumstances to occur disabled status for the security monitoring of battery any substantially completely, and thus for ensureing the safety of train, reliability is greatly improved.
Preferably, the employing of this battery monitor unit is to the numerical measuring of circuit analog quantity to obtain duty parameter, and this sensor monitoring unit adopts sensing technology to detect and obtains environmental physics amount.
Like this, just have employed isomery fault tolerant mechanism equally at sampling element, namely realize analog acquisition by battery monitor unit, the operation of accumulator can be monitored, and sensor monitoring unit realizes the sensing measurement of the objective environments such as such as smog, overheated, overcurrent.As long as lost efficacy when this two class detects different, the present invention just can reliably monitor train battery.
Preferably, this order wire is used for utilizing data communication duty parameter, this sensor monitoring unit comprises sensing equipment and a processing unit, sensing equipment is used for testing environment physical quantity and is sent to this processing unit, and the environmental physics amount received is converted to frequency current pulse, then frequency current pulse is transferred to this unit of warning by train-line by the transformation rule that this processing unit is used for according to presetting.This unit of warning for resolving the frequecy characteristic of the frequency current pulse received, and generates alert messages according to the frequency current pulse received and duty parameter, and exports alert messages.
Environmental physics amount is converted to the transmission that frequency current pulse is not only conducive to train-line, reduce the requirement for train-line, also assures that higher transfer efficiency, for unit of warning, also can by comparatively simply processing according to frequency current pulse generate alert messages.Which has the ability of fault-safety principle simultaneously, namely during sensor monitoring cell failure, often shows as output fixed current, does not have current impulse to change.Therefore, if the train-line electric current that terminal of warning receives is fixed value do not have pulse change, then can judge that sensor monitoring unit or train-line break down, i.e. equipment failure, sends device failure alert, to remind driver or other operating personnel.So, manipulate personnel be difficult to know with regard to avoiding due to device fails, causing trouble is not got rid of in time thus the overheated event such as on fire of battery is occurred, and jeopardizes personal security.In addition, easy understand ground, transformation rule herein can be arranged according to actual conditions by those skilled in the art.
Preferably, this processing unit stores the span of each environmental physics amount, the environmental physics amount exceeding corresponding numerical range for judging whether the environmental physics amount received exceeds corresponding span, and to be converted to frequency current pulse according to the first transformation rule preset, then frequency current pulse to be transferred to this unit of warning by train-line by this processing unit.
Preferably, this transformation rule or this first transformation rule regulation, a frequency of each environmental physics amount respective frequencies current impulse.
Certainly, for example, different parameters also can be corresponded to the different amplitudes of frequency current pulse by another kind of set-up mode.In addition, also can by the corresponding relation between environmental physics amount and the frequency of frequency current pulse in other words transformation rule be set to the frequency corresponding to different frequency current pulse with the combination of multiple environmental physics amount.
Preferably, sensing equipment comprises smoke transducer, current sensor and temperature sensing cable, and smoke transducer and current sensor adopt normally closed contact to be connected with this processing unit.
Wherein, smoke transducer, temperature sensing cable and current sensor all can be set to the form of Sensor of Switch-Output Type.Under smoke transducer normal condition, output alarm junction closure.When accumulator generation smokescope reaches alarm threshold value, smoke transducer output alarm contact disconnects.Under temperature sensing cable normal condition, two heart yearns are wherein in off-state.When accumulator somewhere temperature reaches alarm threshold value, temperature sensing cable two heart yearns close.When accumulator total current be in do not exceed alarm threshold value time, current sensor output alarm junction closure.When accumulator total current reaches alarm threshold value, current sensor output alarm contact disconnects.Concrete setting like this, can avoid when the actual generation of fault, and due to the disconnection of alarm circuit or signal transmission line, all are normal to cause the personnel of alarm unit side or this side to take for battery, bring potential safety hazard.
Preferably, output device fault alarm this unit of warning is not also for receiving environmental physics amount or not receiving duty parameter in a preset duration.
Preferably, this unit of warning comprises a visual alarm for exporting alert messages and an audio alarms.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
Vehicular battery safety monitoring system of the present invention, at sampling element, data transmission link and ring layout foreign structure fault tolerant mechanism of warning, the single equipment fault that links in safety monitoring may occur all can not cause the safety monitoring of system of the present invention to be lost efficacy, can reliably monitor battery exist fault or failure risk situation and send warning in time, significantly improve the reliability of train cell safety monitoring, effectively can monitor the security of operation of rail traffic vehicles accumulator, prevent accumulator overheated, burning, polytype accident such as cannot to power, ensure vehicle and passenger safety under emergency conditions.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Vehicular battery safety monitoring system of a preferred embodiment of the present invention.
Fig. 2 is the schematic diagram of sensing data collecting unit in the Vehicular battery safety monitoring system of a preferred embodiment of the present invention.
Embodiment
Provide present pre-ferred embodiments below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail, but therefore do not limit the present invention among described scope of embodiments.
Shown in figure 1, the Vehicular battery safety monitoring system of a preferred embodiment of the present invention comprises 2 battery cases and is positioned at two cabs at two ends, and two terminals of warning lay respectively in two cabs, and each battery case is equipped with a group storage battery.Because the cell safety monitoring for each battery case is identical, therefore following only for a battery case cell safety monitoring involved by equipment be described.This Vehicular battery safety monitoring system also comprises battery monitor unit 101, communication unit 102, sensor monitoring unit, a-road-through letter line 401 and two-way train-line 402,403.Wherein, sensor monitoring unit comprises sensing data collecting unit 103, smoke transducer 104, temperature sensing cable 105 and current sensor 106.
As shown in Figure 1, in battery case 1, battery monitor unit 101 is connected with communication unit 102, and smoke transducer 104, temperature sensing cable 105, current sensor 106 are connected with sensing data collecting unit 103 respectively.Terminal of warning 301 is arranged on train front end cab, and another terminal of warning is arranged on train rear end cab, and sensing data collecting unit 103 is connected with terminal of warning by train-line 402,403.Communication unit 102 is connected with terminal of warning by order wire 401.
In battery case, battery monitor unit 101 completes the measurement to the detailed operational factor of accumulator, and in the present embodiment, operational factor comprises monomer battery voltage, accumulator total voltage, accumulator total current, dump energy, insulation resistance and battery temperature etc.
Smoke transducer 104 is loaded on above accumulator, position is aimed at bleeder valve or the safety valve of accumulator, for detecting the smog that accumulator produces.The output of smoke transducer 104 is switching value, is set to relay normally closed contact, if accumulator is overheated or glow and produce smog, from accumulator bleeder valve or safety valve or the effusion of other positions, enters smoke transducer 104.When smokescope reaches the alarm threshold value of smoke transducer 104, then the output alarm contact of smoke transducer 104 disconnects, and sends smog alarm signal to sensing data collecting unit 103.
Temperature sensing cable 105 is wound in battery cell case and lead-out terminal, completes accumulator overheating detection.Temperature sensing cable 105 is special sensors of a class responsive to temperature type, and when temperature is all lower than alarm threshold value everywhere for cable, its two heart yearns present open-circuit condition; When cable somewhere is heated, when temperature rises to alarm threshold value, destroy the insulating material between heart yearn, two heart yearns present short-circuit condition.Temperature sensing cable 105 is wound in battery cell case and lead-out terminal, and whether can monitor accumulator body overheated, simultaneously can also monitoring output whether overheated.Because accumulator terminal is connected with wire, the bolt that adopts is fixed more.Under train-installed frequent vibration environment, bolt easily loosens.If bolt looseness, cause wire and termination contact bad, contact resistance increase.When accumulator total current is constant, according to the formula W=I of current work
2r is known, and the heat that surface of contact produces increases, and temperature rises, and temperature rising causes the resistance of terminal to increase further, and heating is more serious, forms positive feedback.This finally will cause surface of contact to generate heat rapidly, even terminal fusing.Therefore, whether temperature sensing cable 105 effectively can monitor terminal and generate heat, and namely detects this kind of potential faults in early days in heating.
Current sensor 106 is connected with sensing data collecting unit 103, and its current measurement end is connected on accumulator major loop, monitors the total current of the accumulator flow through, prevents accumulator overcurrent damage, and prevention is due to major accidents such as overcurrent heating initiation accumulator burnings.Current sensor 106 adopts the current sensor of belt current overload alarm function, and when total current overcurrent, sensor output alarm normally closed contact disconnects, and sends overcurrent alerting signal to sensing data collecting unit 103.
Described sensing data collecting unit 103 connects smoke transducer 104, temperature sensing cable 105 and current sensor 106, and whether perception accumulator operating mode is abnormal, and whether the line of detection smoke transducer 104, current sensor 105 is intact in real time.Sensing data collecting unit is connected with described terminal of warning through described train-line 402.
As shown in Figure 2, the sensing data collecting unit 103 of the present embodiment forms primarily of programmable frequency pulse producer, electronic switch and direct supply.Programmable frequency pulse producer has 3 control inputs, is respectively control inputs 51, control inputs 52 and control inputs 53.Control inputs 51 connects smoke transducer, and control inputs 52 connects temperature sensing cable, and control inputs 53 connects current sensor.Programmable frequency pulse producer characteristic is wherein as shown in table 1.
Table 1 programmable frequency pulse producer function signal table
The output of programmable frequency pulse producer drives electronic switch, and when it exports as high level, electronic switch conducting, direct supply forms closed-loop path through electronic switch, train-line 402 and terminal of warning, generation current.And when it exports as low level, electronic switch disconnects, direct supply is prohibited outwards to export, train-line 402 and the equal no current of terminal of warning.Programmable frequency pulse producer exports f0 ~ f7 and amounts to 8 kinds of frequency pulses control electronic switch conductings or cut-off, the output current of direct supply is modulated into corresponding frequencies pulse, is sent to through train-line terminal of warning.
Particularly, when battery-operated is normal, described smoke transducer 104 normally closed contact of reporting to the police closes, and described temperature sensing cable 105 is opened a way, and described current sensor 106 is reported to the police, normally closed contact closes.Simultaneously, described sensing data collecting unit 103 is working properly, and smoke transducer 104 to sensing data collecting unit connection wire is intact, and current sensor 106 to sensing data collecting unit connection wire is intact, under these circumstances, sensing data collecting unit 103 exports the current impulse of f0 frequency, terminal of warning described in being passed to through described train-line.If accumulator produces smog, trigger described smoke transducer warning normally closed contact and disconnect, then sensing data collecting unit transmission frequency f1 current impulse; If accumulator is overheated, trigger described temperature sensing cable short circuit, then sensing data collecting unit transmission frequency f2 current impulse; If battery over-current, trigger described current sensor, its normally closed contact can disconnect, then sensing data collecting unit transmission frequency f3 current impulse; If smoke transducer and temperature sensing cable are triggered simultaneously, then sensing data collecting unit transmission frequency f4 current impulse; If smoke transducer and current sensor are triggered simultaneously, then sensing data collecting unit transmission frequency f5 current impulse; If temperature sensing cable and current sensor are triggered simultaneously, then sensing data collecting unit transmission frequency f6 current impulse; If smoke transducer, temperature sensing cable and current sensor are triggered simultaneously, then sensing data collecting unit transmission frequency f7 current impulse.
The serial communication data that described terminal parses of warning receives, display battery parameters, and determine whether trigger alarm.Terminal of warning and communication unit 102 directly serial communication adopt secure communication protocols, also have the feature of fault-safety principle.When communication unit 102 is working properly, timing sends measurement data to terminal 301 of warning.If warn, terminal 301 does not receive the data of communication unit 102,202 at the appointed time, be then considered as communication unit 102 fault or order wire 401 disconnects, and by prompt facility fault, asks driver and conductor to note.
Terminal of warning also resolves the current pulse frequency feature that train-line 402,403 transmits, and checks that whether train-line 401,402 is intact, determines whether trigger alarm.If train-line 402,403 intact, and sensing data collecting unit is all working properly, then terminal of warning can receive the current impulse of f0 frequency, and prompting alarm free, equipment is normal.If receive the current impulse of f1 ~ f7 frequency, then terminal of warning sends corresponding warning.If train-line 402,403 interrupts, terminal of warning cannot receive current impulse, then prompt facility fault.
Terminal of warning adopts acousto-optic combination to warn.The combination that the present embodiment adopts is warned mode, is the vision devices such as LCD liquid crystal display, LED alarm lamp and hummer are combined.Adopt acousto-optic two kinds combination to form redundancy, when wherein a kind of equipment failure, as long as another kind is warned, equipment did not lose efficacy simultaneously, then terminal of warning still can maintain alarm function.According to reliability theory, the probability that two kinds of equipment lost efficacy simultaneously is much smaller than a kind of failure probability of equipment.Therefore, above-mentioned acousto-optic combination is warned and is effectively improve the reliability of unit of warning.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (8)
1. a Vehicular battery safety monitoring system, is characterized in that, comprising: a battery monitor unit, a communication unit, a sensor monitoring unit, are warned unit, order wire and train-line;
This battery monitor unit is used for the duty parameter of measuring vehicle battery and the duty parameter recorded is sent to this communication unit, and duty parameter comprises at least one in following parameter: the monomer voltage of Vehicular battery, total voltage, electric current, dump energy, insulation resistance and temperature;
This communication unit is used for the duty parameter received to transfer to this unit of warning by order wire;
This sensor monitoring unit is for detecting the environmental physics amount of working environment residing for Vehicular battery, and the environmental physics amount detected is transferred to this unit of warning by train-line, environmental physics amount comprises at least one in following parameter: the electric current presetting Nodes in smokescope, temperature, circuit;
This unit of warning for generating alert messages according to the environmental physics amount received and duty parameter, and exports alert messages.
2. Vehicular battery safety monitoring system as claimed in claim 1, is characterized in that, the employing of this battery monitor unit is to the numerical measuring of circuit analog quantity to obtain duty parameter, and this sensor monitoring unit adopts sensing technology to detect and obtains environmental physics amount.
3. Vehicular battery safety monitoring system as claimed in claim 1, it is characterized in that, this order wire is used for utilizing data communication duty parameter, this sensor monitoring unit comprises sensing equipment and a processing unit, sensing equipment is used for testing environment physical quantity and is sent to this processing unit, and the environmental physics amount received is converted to frequency current pulse, then frequency current pulse is transferred to this unit of warning by train-line by the transformation rule that this processing unit is used for according to presetting;
This unit of warning for resolving the frequecy characteristic of the frequency current pulse received, and generates alert messages according to the frequency current pulse received and duty parameter, and exports alert messages.
4. Vehicular battery safety monitoring system as claimed in claim 3, it is characterized in that, this processing unit stores the span of each environmental physics amount, the environmental physics amount exceeding corresponding numerical range for judging whether the environmental physics amount received exceeds corresponding span, and to be converted to frequency current pulse according to the first transformation rule preset, then frequency current pulse to be transferred to this unit of warning by train-line by this processing unit.
5. the Vehicular battery safety monitoring system as described in claim 3 or 4, is characterized in that, this transformation rule or this first transformation rule regulation, a frequency of each environmental physics amount respective frequencies current impulse.
6. the Vehicular battery safety monitoring system as described in claim 3 or 4, is characterized in that, sensing equipment comprises smoke transducer, current sensor and temperature sensing cable, and smoke transducer and current sensor adopt normally closed contact to be connected with this processing unit.
7. Vehicular battery safety monitoring system as claimed in claim 1, is characterized in that, output device fault alarm this unit of warning is not also for receiving environmental physics amount or not receiving duty parameter in a preset duration.
8. Vehicular battery safety monitoring system as claimed in claim 1, is characterized in that, this unit of warning comprises a visual alarm for exporting alert messages and an audio alarms.
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| CN104777762A (en) * | 2015-03-24 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Vehicle-mounted system monitoring method and terminal thereof |
| CN108923994A (en) * | 2018-09-10 | 2018-11-30 | 珠海格力电器股份有限公司 | A kind of communication fault detection method and device |
| CN110550069A (en) * | 2018-06-01 | 2019-12-10 | 比亚迪股份有限公司 | data transmission method, device and system for rail transit vehicle |
| CN110596600A (en) * | 2019-07-27 | 2019-12-20 | 广东毓秀科技有限公司 | Rail transit battery maintenance prediction method based on battery life calculation table |
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| CN110967642A (en) * | 2019-04-30 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | Thermal runaway detection circuit and method |
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| CN113119737A (en) * | 2021-04-28 | 2021-07-16 | 中国第一汽车股份有限公司 | Power battery thermal runaway monitoring device and method and power battery system |
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