WO2015196663A1

WO2015196663A1 - Battery detection apparatus and method, and battery theft detection system and method

Info

Publication number: WO2015196663A1
Application number: PCT/CN2014/089228
Authority: WO
Inventors: 宋晶; 容辉; 曹捷; 马国华
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-06-27
Filing date: 2014-10-23
Publication date: 2015-12-30
Also published as: CN105321281A; CN105321281B

Abstract

A battery detection apparatus and method, and a battery theft check system and method. The battery detection apparatus comprises a detection judgment circuit and an alarm output circuit. The detection judgment circuit is used for detecting the voltage at at least two detection points on a battery pack and converting a voltage change of the detection points into a change of output voltage of the detection judgment circuit, the detection points on the battery pack comprising at least two detection points with different relative potential differences. The alarm output circuit is used for converting the output voltage of the detection judgment circuit into an alarm judgment signal processable by a monitoring unit, so that the monitoring unit determines whether a battery is stolen according to the alarm judgment signal. The battery detection apparatus is implemented through a simple hardware circuit, and solves the problem that existing battery theft detection methods have poor flexibility, complex implementation, high costs and cannot realize effective detection and give an alarm for the situation that only some batteries are stolen while power feeding lines at two ends of a storage battery are kept.

Description

Battery detection device and method, battery theft detection system and method

Technical field

The present invention relates to the field of communications technologies, and in particular, to a battery detecting device and method, and a system and method for detecting battery theft.

Background technique

With the popularization and development of communication network technology, in order to realize the extensive and comprehensive coverage of network coverage, more and more outdoor power base stations are blooming in remote mountainous areas. Due to the long-term unattended operation of these base stations, the situation of battery theft has become increasingly rampant. Most base stations use 12V, 6V or 2V lead-acid batteries or lithium batteries, which are expensive; once stolen, not only their own economic losses are serious, but also seriously affect the stability of the base station operation; especially if the relevant staff are not notified in time. Maintenance, when the AC power failure will cause regional communication interruption, the loss and impact caused by it is even more incalculable.

At present, the battery anti-theft and theft detection technologies used at home and abroad generally have the following types: First, by improving the battery rack and other devices, the structure is increased in difficulty of disassembly to improve the anti-theft performance, but the theft can still be removed by violent means. And the battery is not known after being stolen; the second is that it can only provide simple sound and light alarms, and has no practical effect; and the wireless alarm theft detection system using GPS positioning needs to involve a plurality of expensive sensor modules and control processing chips. Complex processing circuits, sophisticated software programming, and high cost, although effective, but their development complexity and price seriously affect the market competitiveness of products.

However, although the two-line detection method and the comparison circuit-based theft detection scheme are relatively cost-effective, there are still many problems: First, the comparison circuit and the subsequent-stage related processing circuit have poor immunity, and The system CPU is closely related and is usually difficult to be independent. It needs to be integrated into the front-end monitoring system of the base station power supply. Therefore, it needs to cooperate with the supporting system when using it, and cannot utilize the existing power system, which greatly limits the flexibility of its use. Sex. Second, when the comparison method is used, it is necessary to design the software and hardware according to the voltage of the detection point. The hardware also needs to consider its own accuracy problem and the signal attenuation caused by the distance between the battery and the power cabinet; To make a separate process to make judgments, the implementation is more complicated. Thirdly, some tech-saving thefts are very embarrassing. They can use the two-wire detection method to steal and not generate alarms, as shown in Figure 1. The 12V battery pack commonly used in base station power supply is taken as an example. The detection lines of the mode are fixed on the positive and negative poles of the battery rack, and are in the same position as the battery take-up wires of the system. If only the middle two batteries are stolen, the voltage on the positive and negative rows of the system is still 48V when the AC is energized and the system is working normally. At this time, the battery detection line actually detects the voltage between the positive and negative rows of the system, which is still 48V, and no alarm will appear, which increases the difficulty of the theft detection work.

Summary of the invention

Embodiments of the present invention provide a battery detecting apparatus and method, and a battery theft detecting system and method, which at least solve the problem that the existing battery theft detecting method has poor flexibility, is complicated to implement, has high cost, and cannot steal the wire for both ends of the reserved battery. Take the problem of effective detection and alarm by taking part of the battery.

In order to solve the above technical problem, the present invention provides a battery detecting device, including: a detecting and determining circuit and an alarm output circuit;

The detection judging circuit is configured to detect a voltage of at least two detection points on the battery pack, and convert a voltage change of the detection point into a change of an output voltage of the detection judging circuit, wherein the detection point on the battery pack includes at least Two detection points having different relative potential differences;

The alarm output circuit is configured to convert the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and send the alarm determination signal to the monitoring unit, so that the monitoring unit can determine the signal according to the alarm. Determine whether the battery in the battery pack is stolen.

Optionally, the alarm output circuit is configured to convert an output voltage of the detection and determination circuit into an alarm determination signal in the form of a dry contact.

Optionally, the detection determining circuit is configured to detect voltages of three detection points on the battery pack, and the detection points on the battery include three detection points on the battery pack having high, medium and low relative potential differences.

Optionally, the detection and determination circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, an NPN transistor, a Zener diode, and an anti-reverse diode;

One end of the first resistor is connected to a potential detecting point on the battery pack, and the other end is connected to a cathode of the Zener diode, and a cathode of the Zener diode is connected to a base of the NPN transistor; One end of the two resistors is connected to the high potential detection point of the battery pack, and the other end is connected to the collector of the NPN type transistor, the third resistor is connected in parallel with the second resistor; the anti-reverse diode The negative pole is connected to the low potential detection point of the battery pack, and the positive pole is connected to the emitter of the NPN type transistor; one end of the fourth resistor is connected to the anode of the Zener diode, and the other end is opposite to the anti-reverse The anode of the tube is connected; the collector of the NPN transistor is connected to the alarm output circuit.

Optionally, the alarm output circuit comprises: a relay; a positive end of the coil control line of the relay is connected to a voltage of a high potential detection point on the battery pack, and a negative end is connected to a collector of the NPN type transistor.

Optionally, the alarm output circuit further includes a protection circuit; the protection circuit is configured to absorb a spike generated when the coil of the relay operates.

Optionally, the protection circuit comprises: a diode; the diode is connected in parallel to the relay coil, and a positive end thereof is connected to a negative end of the coil control line of the relay, and a negative end of the diode and a coil control line are positive Connected to the end.

Also in order to solve the above technical problem, the embodiment of the present invention further provides a battery theft detecting system, comprising the battery detecting device and the foreground monitoring unit as described above;

The foreground monitoring unit is configured to determine, according to the alarm determination signal output by the battery detecting device, whether the battery in the battery pack is stolen, and if so, issue a battery theft information to notify the user that the battery in the battery pack is stolen or Alert.

Optionally, the system further includes: a background monitoring unit; the background monitoring unit is configured to receive the battery stolen information sent by the foreground monitoring unit, and notify the user of the battery pack according to the battery stolen information The battery in the battery was stolen.

Optionally, the foreground monitoring unit is further configured to record a time when the battery is stolen, and send time information of the stolen battery to the background monitoring unit; the background monitoring unit notifies the time information according to the stolen battery The time when the user has stolen the battery in the battery pack.

Also in order to solve the above technical problem, an embodiment of the present invention further provides a battery detecting method, including the following steps:

The detection judging circuit detects a voltage of at least two detection points on the battery pack, and the detection points on the battery pack include at least two detection points having different relative potential differences;

The detection judging circuit converts a voltage change of the detection point into a change of its own output voltage;

The alarm output circuit converts the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and sends the alarm determination signal to an external monitoring unit, so that the monitoring unit determines according to the alarm determination signal Whether the battery in the battery pack is stolen.

Optionally, the step of converting the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit by the alarm output circuit includes: the alarm output circuit converting the output voltage of the detection and determination circuit into a dry Alarm judgment signal in the form of a contact.

Optionally, the step of detecting, by the detection and determination circuit, the voltages of the at least two detection points on the battery pack comprises: the detection determination circuit detecting a voltage of three detection points on the battery group; and the detection points on the battery include There are three detection points on the battery pack with high, medium and low relative potential differences.

Also in order to solve the above technical problem, the embodiment of the present invention further provides a method for detecting battery theft, comprising the following steps:

Using the battery detection method described above to generate an alarm determination signal, and transmitting the alarm determination signal to the foreground monitoring unit;

The foreground monitoring unit determines whether the battery in the battery pack is stolen according to the alarm determination signal output by the detecting device, and if yes, issues a battery theft information to notify the user that the battery in the battery pack is stolen or alarmed.

Optionally, the step of issuing the battery theft information to notify the user that the battery in the battery pack is stolen includes:

The foreground monitoring unit sends the battery theft information to the background monitoring unit;

The background monitoring unit notifies the user that the battery in the battery pack is stolen according to the battery theft information.

Optionally, the method for detecting battery theft further includes:

The foreground monitoring unit records the time when the battery is stolen, and sends the time information of the stolen battery to the background monitoring unit;

The background monitoring unit notifies the user of the time when the battery in the battery pack is stolen according to the time information of the stolen battery.

The beneficial effects of the embodiments of the present invention are:

The invention provides a battery detecting device and method, a battery stealing detecting system and method, and has the advantages of completely independent structure, flexible position, simple circuit, small volume and strong anti-interference ability; in particular, the battery detection of the present invention The device includes: a detection judging circuit and an alarm output circuit; the detection judging circuit is configured to detect a voltage of at least two detection points on the battery pack, and convert the voltage change of the detection point into a change of the output voltage of the detection and judgment circuit The detection point on the battery pack includes at least two detection points having different relative potential differences; the alarm output circuit is configured to convert an output voltage of the detection determination circuit into an alarm determination signal that can be processed by the monitoring unit, And sending the alarm determination signal to the monitoring unit, so that the monitoring unit determines whether the battery in the battery pack is stolen according to the alarm determination signal; the battery detecting device of the present invention provides a judgment for the monitoring unit by using a simple hardware circuit. Alarm alarm signal for battery theft, the structure is completely independent and does not depend on other The device and the system are flexible in position, and the battery can be detected at any position on the site according to the actual environment; and the battery detecting device of the invention is composed of a pure hardware circuit without developing software, and can be powered close to the power without an additional power supply system, so the implementation is simple, The utility model has the advantages of low cost, good anti-interference and high reliability; in addition, the battery detecting device of the invention detects at least two detection points having a relative potential difference on the battery pack, and the voltage changes of any of the detection points, the device is The invention can effectively detect and provide an alarm judgment signal indicating that the battery is stolen, and can provide reliable detection and alarm for the case of stealing only the middle part of the battery; the battery detecting device of the present invention greatly reduces the detection function compared with the prior art. The complexity and cost increase the flexibility and reliability.

Further, the battery detecting device of the embodiment of the present invention sends an alarm judgment signal in the form of a dry contact, which can be used with any system or device having a dry contact detecting function in the field, is flexible and convenient, and is compatible with various monitoring systems, and has more applicability. For a wide range.

DRAWINGS

Figure 1 is a schematic view of the existing two-wire detection mode;

2 is a schematic structural diagram of a battery detecting device according to Embodiment 1 of the present invention;

3 is a schematic structural diagram of a base station battery theft detection system according to Embodiment 1 of the present invention;

4 is a schematic diagram of a three-point wiring mode of a battery pack according to Embodiment 1 of the present invention;

FIG. 5 is a schematic structural diagram of a circuit of a battery detecting device according to Embodiment 1 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of another battery detecting apparatus according to Embodiment 1 of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a battery theft detecting system according to Embodiment 2 of the present invention; FIG.

FIG. 8 is a schematic structural diagram of another battery theft detection system according to Embodiment 2 of the present invention; FIG.

FIG. 9 is a schematic flowchart diagram of a battery detecting method according to Embodiment 3 of the present invention; FIG.

FIG. 10 is a schematic flowchart diagram of a method for detecting battery theft according to Embodiment 3 of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1:

The present invention provides a battery detection device with strong structural independence, easy implementation, and low cost, in view of the problems of the current communication base station battery theft detection device, such as implementation complexity, software support, high cost, and low flexibility. As shown in FIG. 2, the battery detecting device provided in this embodiment specifically includes: a detecting and determining circuit and an alarm output circuit;

The alarm output circuit is configured to convert the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and send the alarm determination signal to the monitoring unit, so that the monitoring unit can determine the signal according to the alarm. It is judged whether the battery in the battery pack is stolen.

The battery detecting device of the embodiment is composed of a pure hardware circuit and does not require development software, and is easy to implement, low in cost, flexible in application, strong in anti-interference ability, and good in reliability; it can cooperate with any existing monitoring system to realize battery theft detection and Alarms are widely used. In this embodiment, the wiring manner of the battery detecting device and the detecting point can be flexible and varied, and the utility model is relatively strong. In addition, the battery detecting device of the present embodiment can be applied to detect base station battery theft or detect other battery theft. The monitoring unit in this embodiment may be an on-site monitoring system.

The main function of the battery detecting device of this embodiment is to detect the voltage of the detection point on the battery pack, and output an alarm judgment signal that can be processed by the monitoring system when the detected voltage of the detection point changes; for the monitoring system to determine the battery according to the alarm judgment signal. Whether the battery in the group has been stolen. In this embodiment, the battery detecting device can detect the voltage of at least two detection points on the battery pack. For example, two detection points or three detection points or three or more detection points can be selected on the battery group for detection, but the selected detection points are selected. It must be satisfied that the voltages of at least two detection points are different, that is, at least two detection points having different relative potential differences; for example, a detection point for outputting a high voltage and an output low can be selected on the battery pack. The detection point of the voltage is detected; for example, three detection points for outputting high, medium and low voltages can be selected for detection on the battery pack. In this embodiment, the method of selecting the detection point can avoid the problem that the current two-wire detection selects the positive and negative points of the battery pack as the detection point, and the detection and alarm cannot be effectively detected for stealing only the intermediate battery; any detection in this embodiment The voltage change of the point will cause the alarm output circuit to output an alarm judgment signal indicating that the battery is stolen, ensuring the reliability and accuracy of the detection result, and promptly notifying the user that the battery is stolen, so that the relevant maintenance personnel can perform maintenance in time. More losses, and at the same time facilitate the public security organs to intervene in a timely manner.

The battery detecting device of this embodiment can detect the voltage of the detecting point on the battery pack through the detecting line, and one detecting line corresponds to one detecting point; when the theft is stolen, it is easy to cut one of the detecting lines when the battery is removed. In this way, the battery detecting device detects the voltage change of the detection point and generates a corresponding alarm judgment signal transmission. To the monitoring unit, the monitoring unit determines that the battery is stolen, and then alerts or notifies the user; in addition, when the theft removes the battery but does not cut the detection line, the voltage of each detection point on the battery pack also changes, in this embodiment The battery detecting device detects the change, generates a corresponding alarm judgment signal and sends it to the monitoring unit, and the monitoring unit determines that the battery is stolen, and then performs an alarm or notifies the user.

Considering the compatibility of the battery detecting device of the embodiment, the alarm output circuit in the battery detecting device of the embodiment is configured to convert the output voltage of the detecting and determining circuit into an alarm determining signal in the form of a dry contact.

In this embodiment, the battery detecting device can output an alarm judgment signal in the form of a dry contact to any monitoring system having a dry contact detecting function on the site, and determine whether the battery is stolen through the monitoring system; the compatibility and flexible applicability of the detecting device are improved.

Preferably, in the embodiment, three detection points having a relative potential high, medium and low relative potential difference on the battery pack are selected for detection. In the following, the battery detecting device of the present embodiment will be described by taking three detection points on the battery pack having relative potentials of high, medium and low relative potential differences as an example:

As shown in FIG. 3, it is a base station battery theft detection system, comprising: a battery group, a detection and determination circuit, an alarm output circuit, and a communication base station monitoring system; wherein the detection and determination circuit and the alarm output circuit comprise the battery detection device in this embodiment. The three input terminals of the detection and judgment circuit are respectively connected to the relatively high potential terminal, the intermediate potential terminal and the low potential terminal of the battery pack through the detection line. Take the 4 12V battery packs commonly used in communication base station power supply as an example (also applicable to other battery packs such as 2V and 6V battery packs). The three-point wiring method can be as shown in Figure 4; For example, the negative terminal of the battery pack is connected to the negative terminal of the battery pack. The intermediate checkpoint is connected to the midpoint potential terminal. The low potential checkpoint is connected to the positive terminal of the battery. Take the column as an example. It should be understood here that the connection shown in FIG. 4 is only an example of the application, and the three-point wiring can be any three points on the battery pack having relatively high, medium and low potential differences. Since the power supply system used by the communication base station is usually -48V system, under the normal working condition of the battery, with -48V as the reference voltage, the signal voltages of the three input terminals in Figure 4 are respectively 32V (VH), 12V (VL). And 24V (VT), with a certain potential difference with respect to VL, controls the operation of the detection and judgment circuit. When the battery is stolen, the detection line will usually be cut off to the ground; for some technically stealers, the battery connected to the two ends of the battery pack may be kept, and the middle battery is stolen; in this case, the middle The test line will also be cut. As long as any one of the three detection lines is cut off, the fixed potential disappears, and the operation state of the detection and judgment circuit changes, causing the alarm output module to output an alarm judgment signal indicating that the battery is stolen, and the communication base station monitoring system can clearly determine that the battery is Pirates. After the battery is stolen, the alarm output module with the node output function as the core converts the voltage outputted by the detection and judgment circuit into dry contact information and uploads it to the communication power monitoring system; the dry contact signal has no polarity requirement, and the contact voltage can be used according to the use. The situation selection, as long as the voltage is larger than the actual application scenario and has a margin, there is no precise requirement; therefore, it can be flexibly compatible with any monitoring device, thereby accurately and reliably implementing the alarm function.

In this embodiment, the detection and determination circuit can be implemented by a circuit with a triode as a core; the alarm output circuit is implemented by a circuit in which a relay is a core device.

It should be understood that in the present embodiment, the detection and determination circuit and the alarm output module with the triode and the relay as the core are only one form of realizing the function of the detection and judgment circuit and the function of the alarm output circuit, and can also have other functions and functions. A device for realizing the functions of the detection and determination circuit and the alarm output circuit of the embodiment and a circuit structure thereof.

As shown in FIG. 5, the detection and determination circuit in this embodiment may include: a first resistor R1, one end is connected to the battery group intermediate detection point signal VT, and the other end is connected to the negative pole of the Zener diode VD1. The anode of VD1 is connected to the base of the NPN transistor VT1. The second resistor R2 has one end connected to the battery pack high potential detection point signal VH and the other end connected to the collector of VT1. The third resistor R3 is connected in parallel with the second resistor R2. The negative electrode of the anti-reverse diode VD2 is connected to the battery pack low potential detection point signal VL, and its positive side is connected to the emitter of VT1, and is connected to the base of VT1 through the fourth resistor R4.

The second resistor R2 is arranged in parallel with the third resistor R3 to provide a suitable collector current for VT1, and the parallel use is to take into account the power consumption margin of the resistor itself. The first resistor R1 and the fourth resistor R4 are divided to provide a suitable base drive current and voltage for VT1. The Zener diode VD1 is set to provide a suitable turn-on voltage to the VT1 to prevent malfunction of the VT1 due to unexpected external interference. Diode VD2 is set to provide protection to the circuit when the VH signal line and the VL signal line are reversed.

As shown in FIG. 5, the alarm output circuit of this embodiment may include a relay K1 whose positive end of the coil control line is connected to the battery pack high potential detection point signal VH, and the negative end is connected to the collector of the transistor VT1.

The working process of the battery detecting device shown in FIG. 5 is: when the battery pack state is normal, the potential difference of each detecting point ensures that the triode VT1 is in an on state, and the battery state detecting signal BT is 0V with respect to the VL signal (ie, its potential) Is VL). When the battery is stolen, if the VH detection line is cut, the battery state detection signal BT is in a floating state. If the HL detection line is cut, the BT signal is pulled up to the same potential as VH. If the VT signal line is cut (ie, only the middle cell is stolen), the transistor is not turned on, and the BT signal is also pulled up to the same potential as VH. If all three detection lines are cut, the battery state detection signal BT is in a floating state, and is similar to the state under normal conditions of the battery. In the normal state, there is a VH-VL differential pressure across the coil of the relay K1, the relay operates, and the normally closed contact ALM-NC is disconnected from the common terminal COM, and the normally open contact ALM-NO and the common terminal COM are It is in a closed state. When the battery is stolen, no matter what kind of theft situation, that is, regardless of the battery state detection signal BT floating or the same potential as VH, there is no pressure difference between the control coil of the relay K1, the relay does not operate, and its normally closed contact ALM- The NC and the common terminal COM are in a closed state, and the normally open contact ALM-NO is disconnected from the common terminal COM; at this time, the communication base station monitoring system will detect the normally closed contact of the relay K1. When the point is closed with the common terminal COM or the open state of the normally open contact ALM-NO and the common terminal COM is judged, the battery is stolen, an alarm is issued, and the user is notified of the battery being stolen.

Further, in order to protect the relay K1, the embodiment may further add a protection circuit to absorb the spike generated when the relay coil is operated, on the basis of FIG. 5. As shown in Fig. 6, a diode VD3 connected in parallel with the relay K1 can be added to absorb the spike generated when the relay coil operates. The positive terminal of the diode VD3 is connected to the negative terminal of the coil control line of the relay (ie, the collector of the transistor VT1), and the negative terminal of the diode VD3 is connected to the positive terminal of the coil control line (ie, VH). The relay outputs the normally closed contact ALM-NC, the normally open contact ALM-NO, and the contact common terminal COM.

When using the circuit shown in Figure 6, it should be noted that from the reliability point of view, each device should have enough margin to derate: the second resistor R2 and the third resistor R3 should pay attention to its maximum power and triode VT1 set. The fit between the electrode currents. The partial pressure of the first resistor R1 and the fourth resistor R4 is to be processed according to the actual voltage condition of the intermediate detection point VT of the battery, and it is necessary to satisfy the voltage after the partial voltage can normally turn on the transistor VT1 under normal conditions, and also need to pay attention to the resistance power. problem. The voltage regulation value of the Zener diode VD2 is also determined according to the voltage division value and the VT1 conduction condition, which can ensure the effective conduction of the VT1 under normal conditions, and when the detection point of the battery is suspended (ie, the detection line is cut) There will be no malfunction due to outside interference. VD2 needs to pay attention to the maximum DC reverse voltage VR needs to be greater than VH-VL and leave a margin to protect the circuit when VH and VL are reversed. For relay K1, it is necessary to select the relay whose rated working voltage is VH-VL; at the same time, it is necessary to select the working voltage and current of its contact according to the actual working conditions, especially the situation of field monitoring. For VD3 that works in conjunction with the relay, its maximum DC reverse voltage VR also needs to be greater than VH-VL with a margin.

Embodiment 2:

As shown in FIG. 7, the embodiment provides a battery theft detection system, including a front-end monitoring unit and the battery detecting device according to the first embodiment;

The battery theft detection system of the embodiment can effectively and accurately detect the stolen battery, and the battery detection device using the pure hardware detects the state of the battery without software development, so the implementation is simple, the cost is low, the anti-interference and the reliability are High and structurally independent, the dry contact signal is compatible with a variety of monitoring systems, and is flexible and convenient.

In this embodiment, the foreground monitoring unit can be an on-site monitoring system, such as a base station power monitoring system.

In this embodiment, the foreground monitoring unit may issue an alarm in the form of sound and light, or may notify the remote user that the battery is stolen while the alarm is being issued.

As shown in FIG. 8 , the detection system of this embodiment may further include a background monitoring unit, where the background monitoring unit is configured to receive the battery stolen information sent by the foreground monitoring unit, and notify the battery according to the stolen information. The battery in the battery pack of the user is stolen.

In this embodiment, the foreground monitoring unit can communicate with the background monitoring unit through the network; the detection system shown in FIG. 8 can send the battery theft information to the remote background monitoring unit through the network when the battery is stolen, and the background monitoring unit A battery stolen message will be displayed to alert the user that the battery has been stolen.

In order to improve the user experience, the foreground monitoring unit is further configured to record the time when the battery is stolen, and send the time information of the stolen battery to the background monitoring unit; the background monitoring unit is stolen according to the battery. The time information informs the user when the battery in the battery pack was stolen.

The foreground monitoring unit in this embodiment may be an on-site monitoring system, which can monitor the battery pack status in real time and send the battery pack status information to the background for presentation to the user. In the embodiment, the detection system can use the on-site monitoring system to send the battery stolen information and the stolen time information of the battery to the background monitoring system for presentation to the user, and the relevant maintenance personnel can timely perform maintenance to avoid greater losses, and facilitate the timely intervention of the public security organ. deal with.

The battery stolen detection system of the present embodiment has the advantages of being completely independent in structure, and connecting with the superior system only through the dry contact signal, and can be used with any system having a dry contact detection function on the site, the position is flexible, and the circuit is simple and compact. Small, strong anti-interference ability; pure hardware circuit to realize the alarm judgment signal to send, no software intervention, greatly reducing the complexity and cost of the detection function, and improving the reliability; the device is configured by the device suitable for the parameter, It can realize the detection of any type of battery pack, and adopts the method of three-wire detection. The detection line can be connected to any three positions of the battery pack according to the requirements of high, medium and low potential, not limited to the positive and negative poles of the battery pack. When theft is stolen, it is easy to cut one of the detection lines when the battery is removed. As long as any one of the three detection signals changes, the device can effectively detect and alarm, and rely on the base station power supply monitoring system accurately. Provides battery theft alarm and battery theft time, effectively ensuring the detection of the knot The reliability and accuracy, so that the relevant maintenance personnel to perform maintenance in time to avoid greater losses, while the public security organs to facilitate timely intervention process.

Embodiment 3:

As shown in FIG. 9, the embodiment provides a battery detection method, including the following steps:

Step 901: The detection determining circuit detects voltages of at least two detection points on the battery group, and the detection points on the battery group include at least two detection points having different relative potential differences.

Step 902: The detection determining circuit converts the voltage change of the detection point into a change of its own output voltage.

Step 903: The alarm output circuit converts the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and sends the alarm determination signal to an external monitoring unit, so that the monitoring unit can The determination signal determines whether the battery in the battery pack has been stolen.

The battery detection method of the embodiment is used to detect the state of the battery pack by using a hardware circuit, and has the advantages of simple implementation, low cost, good anti-interference and high reliability; in addition, the battery detection mode of the embodiment is at least two on the battery pack. The detection point with relative potential difference is detected, and the voltage change of any detection point, the device can effectively detect and provide an alarm judgment signal indicating that the battery is stolen, and can provide reliable detection for the case where only the middle part of the battery is stolen. Compared with the prior art, the battery detection method of the embodiment greatly reduces the complexity and cost of the detection function, improves the flexible application, and improves the reliability.

In order to enable the detection method of the embodiment to have better compatibility, the process of the alarm output circuit converting the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit in the above step 903 may include: The alarm output circuit converts the output voltage of the detection and determination circuit into an alarm determination signal in the form of a dry contact.

Since the dry contact signal is compatible with a plurality of monitoring systems, and has the characteristics of being flexible and convenient, the method of the embodiment is widely applicable and has strong flexibility.

Preferably, the detecting and determining circuit detects the voltage of at least two detection points on the battery pack in the method of the embodiment, the detecting and determining circuit detects a voltage of three detection points on the battery group; The detection points include three detection points on the battery pack with high, medium and low relative potential differences.

For a description of each step of the detecting method of the present embodiment, reference may be made to the specific description of the pair of battery detecting devices of the above embodiment.

As shown in FIG. 10, the embodiment further provides a method for detecting battery theft, which includes the following steps:

Step 110: Generate an alarm determination signal by using the battery detection method, and send the alarm determination signal to the foreground monitoring unit.

Step 111: The foreground monitoring unit determines whether the battery in the battery pack is stolen according to the alarm determination signal. If yes, go to step 112. If no, return to step 110.

Step 112: The battery stolen information is sent to notify the user that the battery in the battery pack is stolen or an alarm is issued.

Preferably, the process of notifying the user that the battery is stolen in the method for detecting battery theft in the embodiment includes: the foreground monitoring unit sends the battery theft information to the background monitoring unit; the background monitoring unit is stolen according to the battery The information informs the user that the battery in the battery pack has been stolen.

The detection method of the battery theft in this embodiment realizes the detection of the state of the battery pack through the hardware circuit, and has the advantages of simple implementation, low cost, good anti-interference and high reliability; in addition, the detection method of the battery theft in the embodiment is the battery pack At least two detection points having a relative potential difference are detected, and voltage changes of any of the detection points can be effectively detected, and the user or the alarm is notified; the method for detecting battery theft in this embodiment is directed to stealing only the middle part of the battery. The situation can provide reliable detection and alarm; compared with the prior art, the battery theft detection method of the embodiment greatly reduces the complexity and cost of the detection function, improves the flexible application, and improves the reliability.

The method of the embodiment may further include:

The method for detecting battery theft in this embodiment can rely on any existing monitoring device of the base station; the advantages are: the structure is completely independent, and the upper system only connects through the dry contact signal, and can be used with any system having dry contact detection function on site. The utility model has the advantages of simple position, simple circuit, small volume and strong anti-interference ability; the pure hardware circuit is used to realize the alarm judgment signal to be sent without software intervention, which greatly reduces the complexity and cost of the detection function and improves the reliability. The device can realize the detection of any type of battery pack by configuring the device suitable for the parameter, and adopts the three-wire detection mode, and the detection line can be connected to any three positions of the battery pack according to the requirements of high, medium and low potential, and not only Limited to the positive and negative poles of the battery pack, when stealing theft for stealing, it is easy to cut one of the detection lines when the battery is removed. As long as any one of the three detection signals changes, the device can effectively detect and Alarms, while relying on the base station power monitoring system to accurately provide battery theft alarms and electricity Stolen Time, effectively ensure the reliability and accuracy of test results, so that the relevant maintenance personnel to perform maintenance in time to avoid greater losses, while the public security organs to facilitate timely intervention process.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Industrial applicability

As described above, a battery detecting apparatus and method, and a battery theft detecting system and method provided by the embodiments of the present invention have the following beneficial effects: the battery detecting apparatus of the present invention provides a monitoring unit with a simple hardware circuit to determine the stolen battery. The alarm judgment signal is completely independent of the structure and does not depend on other equipments and systems. The position is flexible, and the battery can be detected at any position on the site according to the actual environment; and the battery detecting device of the present invention is composed of a pure hardware circuit without developing software, and the power can be taken nearby. There is no need for an additional power supply system, so it has the advantages of simple implementation, low cost, good anti-interference and high reliability. In addition, the battery detecting device of the present invention detects at least two detection points having a relative potential difference on the battery pack. The device can effectively detect and provide an alarm judgment signal indicating that the battery is stolen, and can provide reliable detection and alarm for the case of stealing only the middle part of the battery; the battery detecting device of the present invention and the existing Compared with technology, the detection function is greatly reduced. Complexity and costs and increase the flexibility of application, improve the reliability.

Claims

A battery detecting device includes: a detecting and determining circuit and an alarm output circuit;

The detection judging circuit is configured to detect a voltage of at least two detection points on the battery pack, and convert a voltage change of the detection point into a change of an output voltage of the detection judging circuit, wherein the detection point on the battery pack includes at least Two detection points having different relative potential differences;

The alarm output circuit is configured to convert the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and send the alarm determination signal to the monitoring unit, so that the monitoring unit can determine the signal according to the alarm. It is judged whether the battery in the battery pack is stolen.
The battery detecting device according to claim 1, wherein said alarm output circuit is configured to convert an output voltage of said detection determination circuit into an alarm determination signal in the form of a dry contact.
The battery detecting device according to claim 2, wherein said detection judging circuit is arranged to detect a voltage of three detection points on said battery pack, and said detection points on said battery include high, medium and low on said battery pack Three detection points for the relative potential difference.
The battery detecting device according to claim 3, wherein the detection determining circuit comprises: a first resistor, a second resistor, a third resistor, a fourth resistor, an NPN transistor, a Zener diode, and an anti-reverse diode;

One end of the first resistor is connected to a potential detecting point on the battery pack, and the other end is connected to a cathode of the Zener diode, and a cathode of the Zener diode is connected to a base of the NPN transistor; One end of the two resistors is connected to the high potential detection point of the battery pack, and the other end is connected to the collector of the NPN type transistor, the third resistor is connected in parallel with the second resistor; the anti-reverse diode The negative pole is connected to the low potential detection point of the battery pack, and the positive pole is connected to the emitter of the NPN type transistor; one end of the fourth resistor is connected to the anode of the Zener diode, and the other end is opposite to the anti-reverse The anode of the tube is connected; the collector of the NPN transistor is connected to the alarm output circuit.
The battery detecting device according to claim 4, wherein said alarm output circuit comprises: a relay; a positive end of said coil control line of said relay is connected to a voltage, a negative end of said high potential detecting point on said battery pack, said The collectors of the NPN type transistors are connected.
A battery detecting device according to claim 5, wherein said alarm output circuit further comprises a protection circuit; said protection circuit being arranged to absorb a spike generated when the coil of said relay operates.
The battery detecting device according to claim 6, wherein said protection circuit comprises: a diode; said diode being connected in parallel to said relay coil, said positive end being connected to a negative end of said coil control line of said relay, said second stage The negative end of the tube is connected to the positive end of the coil control line.
A battery theft detecting system, comprising the battery detecting device and the foreground monitoring unit according to any one of claims 1 to 7;

The foreground monitoring unit is configured to determine, according to the alarm determination signal output by the battery detecting device, whether the battery in the battery pack is stolen, and if so, issue a battery theft information to notify the user that the battery in the battery pack is stolen or Alert.
The battery theft detection system of claim 8, further comprising a background monitoring unit; the background monitoring unit configured to receive the battery stolen information sent by the foreground monitoring unit, and stolen according to the battery The information informs the user that the battery in the battery pack has been stolen.
The battery theft detection system of claim 9, wherein the foreground monitoring unit is further configured to record the time when the battery was stolen, and send the time information of the stolen battery to the background monitoring unit;

The background monitoring unit notifies the user of the time when the battery in the battery pack is stolen according to the time information of the stolen battery.
A battery detection method includes the following steps:

The detection judging circuit detects a voltage of at least two detection points on the battery pack, and the detection points on the battery pack include at least two detection points having a relative potential difference;

The detection judging circuit converts a voltage change of the detection point into a change of its own output voltage;

The alarm output circuit converts the output voltage of the detection and determination circuit into an alarm determination signal that can be processed by the monitoring unit, and sends the alarm determination signal to an external monitoring unit, so that the monitoring unit determines according to the alarm determination signal Whether the battery in the battery pack is stolen.
The battery detecting method according to claim 11, wherein the step of converting the output voltage of the detection judging circuit into an alarm judging signal that can be processed by the monitoring unit by the alarm output circuit comprises:

The alarm output circuit converts an output voltage of the detection and determination circuit into an alarm determination signal in the form of a dry contact.
The battery detecting method according to claim 11 or 12, wherein the detecting and determining circuit detects a voltage of at least two detection points on the battery pack, the detecting and determining circuit detecting the battery pack The voltages of the three detection points; the detection points on the battery include three detection points on the battery pack having high, medium, and low relative potential differences.
A method for detecting battery theft includes the following steps:

Using the battery detection method according to any one of claims 11 to 13 to generate an alarm determination signal, and transmitting the alarm determination signal to the foreground monitoring unit;

The foreground monitoring unit determines whether the battery in the battery pack is stolen according to the alarm determination signal output by the detecting device, and if yes, issues a battery theft information to notify the user that the battery in the battery pack is stolen or alarmed.
The method of detecting battery theft according to claim 14, wherein the step of notifying the user that the battery in the battery pack is stolen by the battery theft information includes:

The foreground monitoring unit sends the battery theft information to the background monitoring unit;

The background monitoring unit notifies the user that the battery in the battery pack is stolen according to the battery theft information.
The method for detecting battery theft according to claim 15, further comprising:

The foreground monitoring unit records the time when the battery is stolen, and sends the time information of the stolen battery to the background monitoring unit;

The background monitoring unit notifies the user of the time when the battery in the battery pack is stolen according to the time information of the stolen battery.