CN117746554A - 24-hour anti-theft monitoring alarm system for street lamp cable - Google Patents
24-hour anti-theft monitoring alarm system for street lamp cable Download PDFInfo
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Abstract
A24-hour anti-theft monitoring alarm system for a street lamp cable comprises a central control system and more than one street lamp control terminal, wherein the more than one street lamp control terminal is respectively connected with the central control system, the work of the street lamp control terminal is controlled by the central control system, and the states of the street lamp control terminal and a connecting cable are detected; different detection modes in the day and at night can be realized, the 24-hour anti-theft requirement of the street lamp cable is realized, and the problem that video images are difficult to transmit is easily solved; firstly, a technology of combining a passive cable antitheft terminal with a multipath cable real-time monitoring terminal is adopted, 24-hour online antitheft of the cable is truly realized, and a great amount of engineering practices show that: the alarm accuracy is more than 98%. The street lamp cable is stolen basically under the condition that the cable is not electrified, the functions of automatically re-lighting and starting an alarm whistle when the cable is cut are achieved, criminals are effectively frightened, and loss caused by cable theft can be reduced to the greatest extent.
Description
Technical Field
The invention discloses an alarm system, in particular to a 24-hour anti-theft monitoring alarm system for a street lamp cable.
Background
Along with the continuous rising of the price of nonferrous metals, the street lamp illumination cable becomes an important target of thieves, and the cable is frequently stolen and cut repeatedly, so that not only is serious property loss caused for the country, but also serious traffic and public security risks are brought. Due to the special distribution of the street lamp cables, criminals are easy to succeed, and the street lamp management departments are difficult to deal with. With the continuous extension of urban roads, it is highly desirable to monitor and manage the road lights by modern advanced management means.
At present, several types of anti-theft alarm devices for street lamp lines adopting different principles are proposed in the market, however, several types of products in the prior art all have a lot of unsatisfactory places after being used on site, and the main reasons are that the detection principles of the anti-theft alarm devices have respective limitations, and the principles and the trial conditions of the anti-theft alarm devices for several types of cables are respectively described below:
1. the power carrier anti-theft alarm scheme comprises the following steps: the power carrier scheme is the most used scheme in the industry, mainly because the anti-interference capability of a chip of the power carrier spread spectrum is improved, and meanwhile, a successful application example is provided in other industries such as the district meter reading field. When the street lamp is on at night, the power carrier mode is adopted to communicate the central unit with the tail end, and if the communication is not on, the street lamp is considered to be broken, so that an alarm is given. The method has feasibility, because many street lamp lines are special transformers, the lines are cleaner, clutter is less, power carrier communication is facilitated, and good effects are achieved for some specific lines. However, this approach cannot be used in many lines, with the following limitations:
(1) Is not suitable for the street lamp circuit of the public transformer. As domestic electricity and factory electricity are both in the power supply, clutter signals on the line are strong, and false alarms are generated when the clutter signals are stronger than carrier signals.
(2) It is not suitable for the case of ultra-long lines (the effective distance of the power carrier is typically 500 meters). Sometimes the road section is longer (more than 1 km), the number of sodium lamps is large, the number of compensating capacitors is correspondingly large, and the capacitors can absorb carrier signals of intermediate frequency (100 k-300 k) in a large amount, so that the communication is affected.
(3) Is not suitable for the disconnection warning during the off-lamp period. Because the power carrier communication needs electricity at the tail end to realize disconnection alarm, a lithium battery is generally additionally arranged to enable the power carrier communication to be completed through power supply of the lithium battery during the period of turning off a lamp. However, since the service life of the lithium battery is generally 300 times of charging and discharging, that is, only about 10 months of charging and discharging can be maintained once a day, the time-to-date maintenance amount, maintenance cost and false alarm amount are unacceptable to owners.
2. The leakage anti-theft alarm scheme comprises the following steps: and monitoring by adopting a leakage detection mode. The main principle is that three-phase four-wire cable of a road section passes through a mutual inductor to be detected, the normal value is a specific initial value (namely an initial leakage value), then, leakage is artificially generated between a live wire and the ground at the tail end of the road, the detected value exceeds the original initial value, so that once the detected value is recovered to be normal, the cable is considered to be stolen, and then, an alarm is given. This approach is feasible in an ideal state according to its principles, but is often not so, and is limited in particular as follows:
(1) It is difficult to determine the detection initial value: because the circuit ages or has damage when laying the circuit, the electric leakage condition of circuit can exist more or less, and the condition of electricity leakage still changes according to weather (moist or dry), or does not have electric leakage when installing, has taken place for a long time to leak, so this specific value is difficult to confirm, often installs early warning more, will wait to rise the cable and stolen when producing the phenomenon of not reporting to the police after the initial value.
(2) There is a potential safety hazard: because the electric leakage phenomenon of the tail lamp post is a potential safety hazard, the safety accident is not reimbursed once the safety accident occurs.
(3) The disconnection warning of the daytime neutral state cannot be realized.
3. The scheme of implementing alarm by additionally arranging communication equipment at the tail end of the lamp post is as follows: the communication equipment is additionally arranged at the tail end of the lamp post, and the street lamp line supplies power to communicate with the main station through a wireless (radio) or wired telephone line. The alarm mode also has two modes, namely an active mode and a passive mode, wherein a battery is required to be additionally arranged on the active mode, once the tail end is powered off, the cable is considered to be stolen, and the alarm is immediately given to the master station; and the passive type is continuously surveyed by the main station, and when the detection is not on for a plurality of times (because the power-off equipment cannot work), the cable is considered to be stolen. This approach is reliable, i.e. the false alarm rate of the alarm is low and can be accurately located according to the coded address, but it also has certain limitations:
(1) The alarm can only alarm under the condition that the line is electrified, and the alarm can not be used for 24 hours all the time;
(2) The early investment cost and the installation difficulty are both relatively large, and the method comprises the following steps: the tail end of the street lamp is provided with a radio station or a telephone line for access, the antenna installation problem, lightning protection measures and the like.
Disclosure of Invention
Aiming at the defects of the anti-theft alarm equipment of the street lamp line in the prior art, the invention provides a 24-hour anti-theft monitoring alarm system of a street lamp cable, which integrates capacitance detection, residual current detection, time control and the like, can realize different detection modes in daytime and at night, and can realize 24-hour anti-theft monitoring.
The technical scheme adopted for solving the technical problems is as follows: a24-hour anti-theft monitoring alarm system for a street lamp cable comprises a central control system and more than one street lamp control terminal, wherein the more than one street lamp control terminal is respectively connected with the central control system, the work of the street lamp control terminal is controlled by the central control system, and the states of the street lamp control terminal and a connecting cable are detected; the street lamp control terminal is arranged in the street lamp distribution box, and the street lamp distribution box is connected with the street lamp through one or more cable power supply lines for supplying power; the street lamp control terminal comprises a host central control module, more than one group of current resistance detection modules and more than one group of current transformers, wherein the output ends of the current transformers are connected with the data end of the host central control module, the current resistance detection modules of all the groups are respectively connected with a power supply circuit, and the output ends of the current resistance detection modules of all the groups are connected with the data end of the host central control module; each set of current resistance detection modules and current transformers corresponds to one of the power supply cables in the power supply line.
Each group of current resistance detection modules comprises a group of capacitors and inductors which are connected between any live wire and zero wire at the tail end of the power supply line; the other end of each current transformer and each capacitor arranged in the live wire is grounded; when the lamp is lighted at night, the power supply line is electrified, and as one end of the capacitor at the tail end of the power supply line is grounded, a potential difference is generated at two ends of the capacitor, and an extra current (also called residual current) is generated in the loop, and the current transformer detects the residual current in the line. When the power supply line is normal, the residual current value detected by the current transformer is a fixed value; when the power supply line is cut off, the residual current detected by the current transformer is 0, which indicates that the cable is stolen or the power supply line has a problem. When the lamp is turned off in daytime, the power supply line is not powered, and the resistance value of the power supply line is detected through the current resistance detection module; when the line is normal, the resistance value of the power supply line is a fixed value, and when the power supply line is cut off, the detected resistance is +. it is indicated that the cable is stolen or that the power supply line is problematic.
The technical scheme adopted by the invention for solving the technical problems further comprises the following steps:
the current resistance detection module is connected between any group of live wire and zero line, the detection control switch is connected between the current resistance detection module and the live wire, and when the power supply circuit normally supplies power to the street lamp, the detection control switch is disconnected.
When three-phase power is used for supplying power, the inductor and the capacitor only need to be connected with one phase, one end of the inductor and one end of the capacitor need to be connected with the same phase, and the other end of the inductor and the other end of the capacitor need to be connected with a zero line and a grounding line respectively.
The system also comprises a capacitance detection module, wherein the capacitance detection module adopts a current resistance detection module circuit to carry out capacitance detection, or the capacitance detection module is independently arranged, capacitors with different capacities are arranged on each group of monitored circuits, corresponding capacitance values are arranged in a central control module of a host computer to carry out capacitance management, different residual currents generated by different capacitors are further distinguished, and the state of each corresponding loop cable is monitored, so that the anti-theft monitoring of the multi-branch cable is realized.
Further, under the normal state of the power supply line, a constant residual current exists between the zero line and the live line, when a certain position of the power supply line is disconnected, the residual current is 0, the host central control module measures the capacitance value between the zero line and the live line and compares the capacitance value with the originally set capacitance value through measuring the capacitance time constant, and when the capacitance value changes, the circuit is indicated to be abnormal; the dielectric constant and the distance between the two electrodes are fixed, the capacitance value and the opposite area between the two electrodes are in a linear relation, and when the power supply cable is cut, the distance between the cut position of the cable and the street lamp distribution box can be judged according to the capacitance value and the change of the opposite area between the two electrodes.
During the capacitor detection, a PWM mode is adopted for power supply, and the power is supplied through a street lamp distribution box and a control module of a street lamp control terminal.
The street lamp monitoring terminal comprises a terminal central control module, an illumination sensor, a positioning information acquisition module, a wireless communication module, a lithium battery and a power management module, wherein the illumination sensor is connected with a data end of the terminal central control module and is used for outputting illumination brightness information to the terminal central control module, the positioning information acquisition module is connected with a data end of the terminal central control module and is used for acquiring geographic positioning information and transmitting the positioning information to the terminal central control module, the wireless communication module is connected with a data end of the terminal central control module and is communicated with a central control system and/or a user mobile phone and/or a monitoring center through the wireless communication module and is connected with a power supply line of the street lamp control terminal through a transformer, the lithium battery is connected with the power management module, a part of power supply in the power supply line is output to the transformer at the same time when power is supplied at night, the power supply management module is used for charging the lithium battery after the voltage transformation through the transformer, and the lithium battery is used for power supply to the monitoring terminal when power supply line fails in daytime or the power supply line fails.
The illumination sensor is arranged at a position on the street lamp post, which can be illuminated by the street lamp, or at other positions on the street lamp, which can be illuminated by the street lamp, the illumination sensor works under a set threshold value when a power supply in a power supply circuit supplies power at night, and once the street lamp breaks down or the circuit goes wrong, the detection data of the illumination sensor can change abnormally, and when the terminal central control module detects that the illumination sensor goes wrong, the terminal central control module judges that the corresponding street lamp goes wrong or the circuit goes wrong.
The positioning information acquisition module adopts a GPS module or a Beidou module; the wireless communication module adopts a 2G communication module or a 3G communication module or a 4G communication module or a 5G communication module.
The monitoring terminal also comprises a camera which is connected to the data end of the terminal central control module, the camera is used for collecting video or image information and transmitting the video or image information to the terminal central control module, the monitoring terminal also comprises a holder driving module which is connected to the data end of the terminal central control module, the camera is arranged on the holder, and the holder driving module drives the holder to rotate so as to collect videos or images at different angles; the monitoring terminal also comprises an infrared illumination module which is connected to the data end of the terminal central control module and has the same angle with the video or image collected by the camera.
The monitoring terminal also comprises an emergency lighting module, wherein the emergency lighting module is connected to the data end of the terminal central control module, the emergency lighting module is controlled to emit light through the terminal central control module, the power end of the emergency lighting module is connected with the lithium battery, the emergency lighting module supplies power to the emergency lighting module through the lithium battery, the emergency lighting module adopts the lighting module in the street lamp control terminal, or is independently arranged, the monitoring terminal also comprises an alarm module, the alarm module is connected to the terminal central control module, and when a corresponding street lamp control terminal or a power supply circuit has a problem, the terminal central control module controls the alarm module and the emergency lighting module to work, and the alarm module and the emergency lighting module are arranged together or are independently arranged.
The beneficial effects of the invention are as follows: the invention does not need any external power supply at the end of the lamp turning-off period, and the anti-theft alarm during the lamp turning-on period is irrelevant to the line state (namely the line length and the lamp type) and is irrelevant to the power supply state (namely the transformer power supply mode or the public power supply mode).
The invention has multiple redundancy means, can prevent false alarms from happening, adopts a centralized multipath alarm mode at the front end of the control box, namely, a plurality of lines are connected with a central control room by a main control device through various communication devices, and meanwhile, the invention is matched with the current mature high-definition video monitoring device to realize real-time control of the running condition of the street lamp and complete video evidence collection of the theft of the street lamp cable; in addition, the street lamp video monitoring can make up for some blind areas of partial road surface public security monitoring at the same time, and a certain case-solving clue is provided for public security systems.
The invention not only realizes the 24-hour anti-theft requirement of the street lamp cable, but also easily solves the problem that video images are difficult to transmit; firstly, a technology of combining passive cable theft prevention with a multipath cable real-time monitoring terminal is adopted, 24-hour online theft prevention of the cable is truly realized, and a great amount of engineering practices show that: the alarm accuracy is more than 98%. Particularly, as the theft of the street lamp cable basically occurs under the condition that the cable is not electrified, the street lamp cable can have the unique functions of automatically re-lighting and starting an alarm whistle when the cable is cut, effectively frightens criminals, and can reduce the loss caused by the cable theft to the greatest extent.
The invention will be further described with reference to the drawings and detailed description.
Drawings
Fig. 1 is a block diagram of a system of the present invention.
Fig. 2 is a block diagram of a street lamp control terminal according to the present invention.
Fig. 3 is a block diagram of an alarm terminal of the present invention.
Fig. 4 is a schematic diagram of the host-side detection of the present invention.
Detailed Description
This example is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of this example, and all fall within the scope of the present invention.
Referring to fig. 4 in combination, the invention discloses a 24-hour anti-theft monitoring alarm system for a street lamp cable, which comprises a central control system and more than one street lamp control terminal, wherein the more than one street lamp control terminal is respectively connected with the central control system, the street lamp control terminal is controlled to work through the central control system, the states of the street lamp control terminal and a connecting cable are detected, the central control system is connected with the street lamp control terminal through two or four power supply lines to supply power to the street lamp control terminal, and in the embodiment, the street lamp control terminal comprises a host central control module, more than one group of current resistance detection modules and more than one group of current transformers;
each group of current resistance detection modules and current transformers correspond to one power supply cable in the power supply line, the output end of each current transformer is connected with the data end of the central control module of the host, the current resistance detection modules are connected with the power supply line, and the output ends of the current resistance detection modules are connected with the data end of the central control module of the host; each group of current resistance detection modules comprises a group of capacitors and inductors which are connected between any live wire and zero wire at the tail end of the power supply line; the other end of each current transformer and the other end of each capacitor which are arranged in the live wire are respectively grounded; when the lamp is lighted at night, the power supply line is electrified, and as one end of the capacitor at the tail end of the power supply line is grounded, a potential difference is generated at the two ends of the capacitor, and a residual current is generated in the loop, and the current transformer detects the residual current in the line; when the power supply line is normal, the residual current value detected by the current transformer is a fixed value; when the power supply line is cut off, the residual current detected by the current transformer is 0, and the central control module of the host judges that the cable is stolen or the power supply line has a problem; when the lamp is turned off in daytime, the power supply line is not powered, and the resistance value of the power supply line is detected through the current resistance detection module; when the line is normal, the resistance value of the power supply line is a fixed value, and when the power supply line is cut off, the detected resistance is ≡, and the central control module of the host computer judges that the cable is stolen or a power supply circuit has a problem.
In this embodiment, the host central control module adopts a conventional single-chip microcomputer chip in the prior art, and can adopt 51 series, ARM series, TI series and the like, and can be selected according to actual needs.
In this embodiment, the current resistance detection module is connected between live wire and zero line, is connected with the detection control switch between current resistance detection module and the live wire, and when power supply line normally supplied power for the street lamp, the detection control switch disconnection to avoid the high voltage electricity on the live wire to cause the damage to central control system, in this embodiment, the current resistance detection module adopts the form of divider resistor, through the voltage value that divider resistor obtained, converts into resistance value, for host computer central control module judges.
In this embodiment, when two-phase electricity is used for power supply, that is, two power supply lines are used for power supply to the street lamp, one of the two power supply lines is a live wire, the other is a zero wire, and the current transformer is used for detecting residual current in the live wire; when three-phase power is adopted for supplying power, the street lamp is powered through four power supply lines, three of the three power supply lines are live wires, namely an A phase, a B phase and a C phase, one of the three power supply lines is a zero line, and the current transformer is used for detecting current in any live wire or detecting current in the three live wires. Of course, a ground wire is often arranged in most street lamp power supply lines, and whether the ground wire is arranged or not does not influence the application of the technology.
In this embodiment, when three-phase power is used for supplying power, the inductor and the capacitor only need to be connected to one phase (or the inductor and the capacitor can be connected to three phase lines), but one end of the same group of inductor and one end of the same group of capacitor must be connected to the same phase, and the other end must be connected to the zero line and the ground line respectively.
When the lamp is lighted at night, the power supply line is electrified, the current transformer detects the residual current in the line, when the power supply line is normal, the residual current value detected by the current transformer is a fixed value, and when the power supply line is cut off, the residual current detected by the current transformer is 0, so that the cable is stolen or the power supply line has a problem, and the system alarms; when the lamp is turned off in daytime, the power supply circuit is not powered, the resistance value of the power supply circuit is detected through the current resistance detection module, and when the circuit is normal, the resistance value of the power supply circuit is a fixed value; when the power supply line is cut off, the detected resistance is +. it is indicated that the cable is stolen or the power supply line is out of order, and the system alarms.
In this embodiment, the capacitance detection module may detect by means of a current resistance detection module circuit, or may be separately set, and calculate a capacitance value by using a central control module of the host, where in a power supply circuit that uses two-phase electricity to supply power, the capacitance detection module is connected to a zero line and a live line of the power supply circuit, and in a normal state of the power supply circuit, the system automatically measures a capacitance value between the zero line and the live line by measuring a time constant, and compares the capacitance value with an originally set capacitance value, and when the capacitance value changes, it indicates that the circuit is abnormal. In the power supply circuit adopting three-phase power for power supply, the capacitance detection module can measure the capacitance between any one phase line and the ground wire (a current resistance detection module can be adopted, or a single capacitance detection module can be adopted), and also can measure the capacitance between any two phase lines (the capacitance detection module is required to be arranged independently), the method for measuring the capacitance between any one phase line and the ground wire is the same as the measuring method when two-phase power is used for power supply, and is not repeated herein, when the capacitance between any two phase lines is measured, the two lines are not conducted, the capacitance is a fixed value, and when the capacitance value changes, the abnormality is indicated.
When a capacitor is charged by a resistor of known value, the time it takes for the capacitor to charge to about 63.2% of the applied voltage is referred to as the capacitor time constant (τ=tau is also referred to as the RC time constant) and can be calculated by:
τ = R×C
wherein,
r is a known resistance value in ohm, which can be a voltage dividing resistance in the current resistance detection module or a resistance in the independently arranged capacitance detection module, and the resistance value of the resistance is known and fixed no matter which form is adopted;
c is the capacitance value;
tau is Tau (i.e. the time constant).
According to the following formula:
wherein C is capacitance value epsilon r The dielectric constant S is the facing area between the two electrodes, d is the distance between the two electrodes, the dielectric constant and the distance between the two electrodes are fixed, the capacitance value and the facing area between the two electrodes are in linear relation, when the power supply cable is sheared, the capacitance value can be changed approximately according to the change of the capacitance valueThe distance between the cut-off position of the cable and the distribution box of the street lamp is judged, namely the cut-off position of the cable can be roughly judged, and the central control system can control the corresponding cameras nearby to collect videos or images through the wireless communication module.
In this embodiment, during capacitance detection, since the time taken for the capacitor to charge to about 63.2% of the applied voltage needs to be measured, both the current resistance detection module circuit and the separate capacitance detection module circuit are powered by adopting a PWM mode, and the power supply is controlled by the terminal central control module, so that the charging time of the capacitor is accurately collected. According to different lengths of specific lines, the charging time is inconsistent, the frequency and the duty ratio of the PWM are required to be calculated according to the specific lines, the detection capacitance and the resistance are enough, the normal use can be influenced when the frequency is too low, and the higher the frequency of the PWM is, the better the frequency is within an allowable range.
In this embodiment, the street lamp distribution box is further provided with a monitoring terminal, which is used for monitoring a line in cooperation with a host, in this embodiment, the monitoring terminal includes a terminal central control module, an illumination sensor, a positioning information acquisition module, a wireless communication module, a lithium battery and a power management module, the illumination sensor is connected with a data end of the terminal central control module, and is used for outputting the information about brightness to the terminal central control module, the positioning information acquisition module is connected with a data end of the terminal central control module, the positioning information acquisition module is used for acquiring geographic positioning information and transmitting the positioning information to the terminal central control module, the wireless communication module is connected with a data end of the terminal central control module, the wireless communication module is used for communicating with the host end and/or a user mobile phone and/or a monitoring center, the power management module is connected with a street lamp control terminal power supply line through a transformer, the lithium battery is connected with the power management module, a part of power in the power supply line is output to the transformer at the same time when power is supplied, and is output to the power management module through the transformer after the transformer, the power management module is used for charging the lithium battery, and the lithium battery is used for monitoring the power supply terminal when power is not used for supplying power or power to the street lamp power supply faults occur in the daytime. In this embodiment, a streetlight distribution box is preferably provided with a monitoring terminal, and in specific implementation, other setting forms may be adopted, for example: each two street light switchboxes is equipped with a monitoring terminal, or others.
In this embodiment, the terminal central control module adopts a conventional single-chip microcomputer chip in the prior art, can adopt 51 series, ARM series, TI series and the like, can select according to actual needs, and can only adopt a single-chip microcomputer with a conventional data processing function. In this embodiment, the terminal central control module stores corresponding number information, that is, the device ID, and when the system is built, the location information corresponding to the ID may be input into the system, and the location of the terminal with the fault may be approximately determined according to the ID.
In this embodiment, the illumination sensor is used for collecting the brightness of ambient light, the conventional photoresistor or photodiode can be adopted, the preferred illumination sensor is arranged at the position on the street lamp pole which can be illuminated by the street lamp, when the implementation is carried out, the preferred illumination sensor can also be arranged at other positions which can be illuminated by the street lamp, the illumination sensor works under the set threshold value when the power supply in the power supply circuit supplies power at night, once the street lamp breaks down or the circuit goes wrong, the detection data of the illumination sensor can be changed abnormally, and when the terminal central control module detects that the illumination sensor goes wrong, the corresponding street lamp goes wrong or the circuit goes wrong, namely, the wireless communication module is used for communicating with the host computer end and/or the user mobile phone and/or the monitoring center.
In this embodiment, the positioning information acquisition module may adopt a conventional GPS module or a beidou module, and the positioning information acquisition module adopts geographic position information of a corresponding device terminal and transmits the geographic position information to the host end so as to determine the position of the terminal with a fault.
In this embodiment, the wireless communication module may adopt a 2G communication module or a 3G communication module or a 4G communication module or a 5G communication module, a SIM card may be inserted into the wireless communication module, and the wireless communication module communicates with a host side and/or a user mobile phone and/or a monitoring center by means of a mobile communication network, and when the 2G communication module or the 3G communication module is adopted, the wireless communication module is limited by a communication bandwidth and is generally used for transmitting text information, and when the 4G communication module or the 5G communication module is adopted, besides text information, video or picture information may also be transmitted.
In this embodiment, the monitoring terminal further includes a camera, the camera is connected to the data end of the terminal central control module, the camera is used for collecting video or image information and transmitting the video or image information to the terminal central control module, the monitoring terminal further includes a pan-tilt driving module, the pan-tilt driving module is connected to the data end of the terminal central control module, the camera is mounted on the pan-tilt, and the pan-tilt driving module can drive the pan-tilt to rotate to collect video or image at different angles.
In this embodiment, the monitoring terminal further includes an infrared illumination module, and the infrared illumination module is connected to the data end of the terminal central control module and is the same as the angle at which the camera collects video or images, and the infrared illumination module can supplement light to the camera collection area.
In this embodiment, the monitoring terminal further includes an emergency lighting module, the emergency lighting module is connected to the data end of the terminal central control module, the terminal central control module can control the emergency lighting module to emit light, the power end of the emergency lighting module is connected with the lithium battery, and the lithium battery supplies power to the emergency lighting module. In this embodiment, the emergency lighting module may be a lighting module in the street lamp control terminal, or may be set separately, and if the street lamp control terminal adopts a high-voltage lighting device such as an incandescent lamp or a sodium lamp, the voltage and the electric energy of the lithium battery are insufficient to drive the lighting device to light, the emergency lighting module needs to be set separately.
In this embodiment, the monitoring terminal further includes an alarm module, and the alarm module is connected to the terminal central control module and can be controlled to work by the terminal central control module. When a corresponding street lamp control terminal or a power supply line is in problem, the terminal central control module controls the alarm module and the emergency lighting module to work, the alarm module and the emergency lighting module play a role in deterring a person attempting to steal the power supply cable so as to reduce loss, meanwhile, the emergency lighting module can also supplement lighting of the street lamp control terminal in problem, the alarm module and the emergency lighting module can be arranged together, and the alarm module and the emergency lighting module work synchronously and can be independently arranged.
The invention adopts microcomputer control technology and modern communication technology according to the specific control mode and actual use condition of the road street lamp illumination in the city and the village in China. The mobile communication network is utilized to carry out information transmission, the network is mature and reliable, the coverage area is wide, the operation cost is low, timely and accurate alarm provides effective information for striking the crazy street lamp cable theft, the work of street lamp management departments and public security departments is tired from coping, the criminals draw the nose away, and powerful help is provided for actively striking the transition of pursuing criminals. Experience proves that after the road section provided by the invention is installed, a thief can not easily get off the road section after the road section is hit in time for several times, and the road section is an effective tool for dealing with the thief of the street lamp cable.
Claims (10)
1. A24-hour anti-theft monitoring alarm system for a street lamp cable is characterized in that: the system comprises a central control system and more than one street lamp control terminal, wherein the more than one street lamp control terminal is respectively connected with the central control system, controls the street lamp control terminal to work through the central control system, and detects the states of the street lamp control terminal and the connecting cable;
the street lamp control terminal is arranged in a street lamp distribution box, and the street lamp distribution box is connected with the street lamp through one or more cable power supply lines for supplying power; the street lamp control terminal comprises a host central control module, more than one group of current resistance detection modules and more than one group of current transformers, wherein the output ends of the current transformers are connected with the data end of the host central control module, the current resistance detection modules of all the groups are respectively connected with a power supply circuit, and the output ends of the current resistance detection modules of all the groups are connected with the data end of the host central control module;
each group of current resistance detection modules and the current transformer corresponds to one power supply cable in the power supply line;
each group of current resistance detection modules comprises a group of capacitors and inductors which are connected between any live wire and zero wire at the tail end of the power supply line;
the other end of each current transformer and the other end of each capacitor which are arranged in the live wire are respectively grounded; when the lamp is lighted at night, the power supply line is electrified, and as one end of the capacitor at the tail end of the power supply line is grounded, a potential difference is generated at the two ends of the capacitor, and a residual current is generated in the loop, and the current transformer detects the residual current in the line; when the power supply line is normal, the residual current value detected by the current transformer is a fixed value; when the power supply line is cut off, the residual current detected by the current transformer is 0, and the central control module of the host judges that the cable is stolen or the power supply line has a problem; when the lamp is turned off in daytime, the power supply line is not powered, and the resistance value of the power supply line is detected through the current resistance detection module; when the line is normal, the resistance value of the power supply line is a fixed value, and when the power supply line is cut off, the detected resistance is ≡, and the central control module of the host computer judges that the cable is stolen or a power supply circuit has a problem.
2. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 1, wherein: the current resistance detection module is connected between any group of live wire and zero line, the detection control switch is connected between the current resistance detection module and the live wire, and when the power supply circuit normally supplies power to the street lamp, the detection control switch is disconnected.
3. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 1, wherein: when three-phase power is used for supplying power, the inductor and the capacitor only need to be connected with one phase, one end of the inductor and one end of the capacitor need to be connected with the same phase, and the other end of the inductor and the other end of the capacitor need to be connected with a zero line and a grounding line respectively.
4. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 1, wherein: the system also comprises a capacitance detection module, wherein the capacitance detection module adopts a current resistance detection module circuit to carry out capacitance detection, or the capacitance detection module is independently arranged; each group of monitored circuits is provided with capacitors with different capacities, corresponding capacitance values are arranged in a central control module of a host computer to carry out capacitance management, different residual currents generated by different capacitors are distinguished, the state of each corresponding loop cable is monitored, and anti-theft monitoring of the multi-branch cable is realized; under the normal state of the power supply line, a constant residual current exists between the zero line and the live line, when a certain position of the power supply line is disconnected, the residual current is 0, the host central control module measures the capacitance value between the zero line and the live line and compares the capacitance value with the originally set capacitance value, when the capacitance value changes, the abnormality of the line is indicated, the distance between the dielectric constant and the two electrodes is fixed, the capacitance value and the opposite area between the two electrodes are in a linear relation, and when a power supply cable is cut, the host central control module can judge whether the cut position of the cable is far from the street lamp distribution box or near according to the change of the opposite area between the capacitance value and the two electrodes.
5. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 4, wherein: during the capacitor detection, a PWM mode is adopted for power supply, and the power is supplied through a street lamp distribution box and a control module of a street lamp control terminal.
6. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 1, wherein: the street lamp control terminal department be provided with monitor terminal, monitor terminal includes terminal central control module, the illumination sensor, location information acquisition module, wireless communication module, lithium cell and power management module, the data end of illumination sensor and terminal central control module is connected, be used for exporting and regard luminance information for terminal central control module, location information acquisition module is connected with terminal central control module's data end, location information acquisition module is used for gathering geographical location information, and transmit location information for terminal central control module, wireless communication module is connected with terminal central control module's data end, communicate and data transmission with central control system and/or user's cell-phone and/or monitor center through wireless communication module, power management module is connected with street lamp control terminal power supply line through the transformer, the lithium cell is connected with power management module, the power in the power supply line is when supplying power, simultaneously have a part of power output to the transformer, output is given power management module after the transformer is transformed, utilize power management module to charge the lithium cell, do not have electricity or the power supply line is failed in daytime, utilize the lithium cell to supply line to carry out the power supply for monitor terminal night.
7. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 6, wherein: the illumination sensor is arranged at a position on the street lamp post, which can be illuminated by the street lamp, or at other positions on the street lamp, which can be illuminated by the street lamp, the illumination sensor works under a set threshold value when a power supply in a power supply circuit supplies power at night, and once the street lamp breaks down or the circuit goes wrong, the detection data of the illumination sensor can change abnormally, and when the terminal central control module detects that the illumination sensor goes wrong, the terminal central control module judges that the corresponding street lamp goes wrong or the circuit goes wrong.
8. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 6, wherein: the positioning information acquisition module adopts a GPS module or a Beidou module; the wireless communication module adopts a 2G communication module or a 3G communication module or a 4G communication module or a 5G communication module.
9. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 6, wherein: the monitoring terminal also comprises a camera which is connected to the data end of the terminal central control module, the camera is used for collecting video or image information and transmitting the video or image information to the terminal central control module, the monitoring terminal also comprises a holder driving module which is connected to the data end of the terminal central control module, the camera is arranged on the holder, and the holder driving module drives the holder to rotate so as to collect videos or images at different angles; the monitoring terminal also comprises an infrared illumination module which is connected to the data end of the terminal central control module and has the same angle with the video or image collected by the camera.
10. The street lamp cable 24 hour anti-theft monitoring alarm system of claim 6, wherein: the monitoring terminal also comprises an emergency lighting module, wherein the emergency lighting module is connected to the data end of the terminal central control module, the emergency lighting module is controlled to emit light through the terminal central control module, the power end of the emergency lighting module is connected with the lithium battery, the emergency lighting module supplies power to the emergency lighting module through the lithium battery, the emergency lighting module adopts the lighting module in the street lamp control terminal, or is independently arranged, the monitoring terminal also comprises an alarm module, the alarm module is connected to the terminal central control module, and when a corresponding street lamp control terminal or a power supply circuit has a problem, the terminal central control module controls the alarm module and the emergency lighting module to work, and the alarm module and the emergency lighting module are arranged together or are independently arranged.
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| CN202410179726.XA CN117746554A (en) | 2024-02-18 | 2024-02-18 | 24-hour anti-theft monitoring alarm system for street lamp cable |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1195875A2 (en) * | 2000-09-22 | 2002-04-10 | ABB Substation Automation Oy | Method for identification of a faulting or faulted sending end or feeder branch in an electrical distribution system such as a compensated network |
| CN2796294Y (en) * | 2005-05-13 | 2006-07-12 | 深圳市百良能源科技有限公司 | Remote control digital intelligent cable anti-theft monitoring system for road lamps |
| KR20110094735A (en) * | 2010-02-17 | 2011-08-24 | 에스제이텔레콤 주식회사 | Electric fire prediction and illumination control system for street lamp |
| CN110244101A (en) * | 2019-05-23 | 2019-09-17 | 国网山东省电力公司临沂供电公司 | The fixed anti-external force of construction point multi-function of high-tension cable destroys monitoring system and method |
| CN216211452U (en) * | 2021-10-29 | 2022-04-05 | 重庆福田电力器材有限公司 | Cable fire-proof anti-theft detection device |
-
2024
- 2024-02-18 CN CN202410179726.XA patent/CN117746554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1195875A2 (en) * | 2000-09-22 | 2002-04-10 | ABB Substation Automation Oy | Method for identification of a faulting or faulted sending end or feeder branch in an electrical distribution system such as a compensated network |
| CN2796294Y (en) * | 2005-05-13 | 2006-07-12 | 深圳市百良能源科技有限公司 | Remote control digital intelligent cable anti-theft monitoring system for road lamps |
| KR20110094735A (en) * | 2010-02-17 | 2011-08-24 | 에스제이텔레콤 주식회사 | Electric fire prediction and illumination control system for street lamp |
| CN110244101A (en) * | 2019-05-23 | 2019-09-17 | 国网山东省电力公司临沂供电公司 | The fixed anti-external force of construction point multi-function of high-tension cable destroys monitoring system and method |
| CN216211452U (en) * | 2021-10-29 | 2022-04-05 | 重庆福田电力器材有限公司 | Cable fire-proof anti-theft detection device |
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