CN105139577A - Danger alarm method for inner corner of elevator based on wireless communication - Google Patents
Danger alarm method for inner corner of elevator based on wireless communication Download PDFInfo
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- CN105139577A CN105139577A CN201510468710.1A CN201510468710A CN105139577A CN 105139577 A CN105139577 A CN 105139577A CN 201510468710 A CN201510468710 A CN 201510468710A CN 105139577 A CN105139577 A CN 105139577A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The invention relates to a danger alarm method for an inner corner of an elevator based on wireless communication, and the method comprises a step: 1) providing a danger alarm platform for the inner corner of the elevator based on wireless communication, wherein the platform comprises a camera, an image processor, wireless communication equipment, and a Freescale IMX6 processor. The camera is used for photographing an elevator car so as to obtain a real-time elevator image, and the image processor is connected with the camera and used for processing the real-time elevator image so as to extract scene data. The Freescale IMX6 processor is connectd with the image processor and the wireless communication equipment, and is used for determining whether to give a corner danger alarm through the wireless communication equipment or not based on the extracted scene data. The method also comprises a step: 2) employing the alarm platform to give an alarm. The method can detect a condition that a violator enables a sufferer to be forced to a corner of the elevator in a targeted manner.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of based on danger alarm method in corner in the elevator of radio communication.
Background technology
Increasing for violence in elevator, increasing particularly to the violence of women, elevator safety problem is also more and more subject to people's attention, and how taking environment for elevator user provides safe, is the problem that each elevator monitoring party needs to solve.
Elevator its space that is in operation is hedged off from the outer world, close at elevator, improve the opportunity of violent crime to lawless person in narrow space, although there is the technical scheme that some are monitored elevator interior space video in prior art, but these technical schemes all need monitor staff's visual inspection monitor video, manually carry out the judgement of act of violence, and cannot accurately judge each Violent scene in prior art, thus different counter-measures cannot correspondingly be taked, such as, cannot judge that in elevator, the violence person of being implemented forces corner to implement the sight of violence by violence implementer.
Therefore, need the detection scheme of the concrete Violent scene of a kind of new lift space, not only Violent scene can be detected in time, exactly, and can judge that the type of Violent scene is the scene of corner violence, be the information reference that associated monitoring department takes corresponding counter-measure to provide important.
Summary of the invention
In order to solve the problem, the invention provides a kind of based on danger alarm platform in corner in the elevator of radio communication, the default concrete scene in elevator progressively determined by employing a series of images checkout equipment: from image, peel off human body target by human body gray scale upper limit threshold and human body gray scale lower threshold, corner Violent scene is judged by the geometrical property of each human body target, these image detecting apparatus can organically be incorporated in elevator main body, when not delaying elevator and normally running, violence early warning mechanism is provided, shorten the reaction time of elevator supervision department.
According to an aspect of the present invention, provide a kind of based on danger alarm method in corner in the elevator of radio communication, the method comprises: 1) provide a kind of based on danger alarm platform in corner in the elevator of radio communication, described platform comprises camera, image processor, Wireless Telecom Equipment and Freescale IMX6 processor, described camera is used for taking to obtain real-time elevator image to lift car, described image processor is connected with described camera, for performing image procossing to extract contextual data to described real-time elevator image, described Freescale IMX6 processor is connected respectively with described image processor and described Wireless Telecom Equipment, for determining whether that based on the contextual data extracted realizing corner danger by described Wireless Telecom Equipment reports to the police, 2) use described alarm platform to report to the police.
More specifically, described based in danger alarm platform in corner in the elevator of radio communication, also comprise: user input device, for the operation according to user, receive the human body gray scale upper limit threshold of user's input, human body gray scale lower threshold, preset interval detection time, preset shooting quantity, area change rate threshold value, predeterminable range threshold value and default active area threshold value, described human body gray scale upper limit threshold and described human body gray scale lower threshold are used for the human body in image and background separation, the value of described human body gray scale upper limit threshold and described human body gray scale lower threshold is all between 0-255, static memory, be connected with described user input device, for receive and store described human body gray scale upper limit threshold, described human body gray scale lower threshold, described default detection time interval, described default shooting quantity, described area change rate threshold value, described predeterminable range threshold value and described default active area threshold value, elevator agent structure, by elevator car body equipment, machine room opertaing device, hoistway opertaing device and stop opertaing device composition, described elevator car body equipment comprises hoistway sensor, door lifter, emergency terminal switch, lead boots, operation panel in sedan-chair, sedan-chair frame, gate, safety tongs, trailing cable and car, described hoistway sensor, described door lifter, described emergency terminal switch and describedly lead the top that boots are all arranged on described car, in described sedan-chair, operation panel is arranged on the inside of described car, described sedan-chair frame is arranged on the exterior circumferential of described car, for fixing described car, described safety tongs is arranged on the bottom of described car, described trailing cable is arranged on the outside of described car, and described machine room opertaing device comprises speed reduction unit, drag running wheel, angle sheave, limiter of speed, detent, drag and draw machine, power switch and elevator power supply source, described hoistway opertaing device comprises rail brackets, drag and draw wire rope, switch touches iron, guide rail, counterweight, compensated chain, compensated chain guide wheel, tensioning system, fag end combination and impact damper, described counterweight is fixed on the below of described car by described fag end combination, described compensated chain, described compensated chain guide wheel and described tensioning system are successively set on the below of described counterweight in accordance with the order from top to bottom, and described stop opertaing device is arranged on every first floor layer, comprises call box, floor pilot lamp and layer door, described camera is arranged in described car, is connected with described static memory, to automatically snap the real-time elevator image of multiframe presetting shooting quantity successively based on interval described default detection time, described image processor is connected with described camera and described static memory, to receive the real-time elevator image of described multiframe respectively, described image processor comprises edge enhancer device, the sub-device of wavelet filtering, the sub-device of gray processing process, target recognin device and data and extracts sub-device, described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are combined for performing contextual data extraction process to the real-time elevator image of each frame: described edge enhancer device is connected with described camera, strengthening process for performing edge to the real-time elevator image of each frame, strengthening image to obtain each frame, the sub-device of described wavelet filtering is connected with described edge enhancer device, performs wavelet filtering process, to obtain each frame filtering image for strengthening image based on HAAR wavelet filter to each frame, the sub-device of described gray processing process is connected with the sub-device of described wavelet filtering, for performing gray processing process, to obtain each frame gray processing car image to each frame filtering image, described target recognin device is connected respectively with the sub-device of described gray processing process and described static memory, and the pixel of gray-scale value between described human body gray scale upper limit threshold and described human body gray scale lower threshold in each frame gray processing car image is formed multiple target gray subimage, described data are extracted sub-device and are connected with described target recognin device, calculate the position of form center of relative distance between the area of each target, every two targets and each target based on described multiple target gray subimage, described Freescale IMX6 processor extracts sub-device with described data and described static memory is connected respectively, the area of each target corresponding based on the real-time elevator image of each frame and the position of form center of each target calculate the real-time area change rate mean value of each target and the scope of activities of each target respectively, and be greater than described area change rate threshold value at the real-time area change rate mean value of all targets, relative distance between all every two targets is less than described predeterminable range threshold value and the scope of activities area occupied of all targets is less than default active area threshold value, then assert that there is violence implementer forces corner to implement the sight of violence the violence person of being implemented, send corner danger alerting signal, described Wireless Telecom Equipment, be connected respectively with described Freescale IMX6 processor and described image processor, for when receiving described corner danger alerting signal, real-time for described multiframe elevator image is carried out MPEG-4 compressed encoding, and the multiframe compressed image after compressed encoding and described corner danger alerting signal are sent to the internal network of elevator responsible department or the mobile terminal of elevator responsible official by 4G communication network, wherein, described Freescale IMX6 processor is based on the real-time area change rate mean value of each target of areal calculation of each target corresponding to the real-time elevator image of each frame, be specially, for each target, calculate the area change rate of this target of the real-time elevator image of two frames of adjacent shooting time according to the shooting time tandem of real-time elevator image, and the real-time area change rate mean value obtaining this target is averaged to the multiple area change rates calculated, described Freescale IMX6 processor calculates the scope of activities of each target based on the position of form center of each target corresponding to the real-time elevator image of each frame, be specially, for each target, link together the position of form center of all real-time elevator images obtained scope, described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are integrated in one piece of fpga chip, elevator power supply source in described elevator agent structure comprises solar powered device, uninterrupted power source device, civil power access device, change-over switch and switch controller, described change-over switch and described solar powered device, described uninterrupted power source device is connected respectively with described civil power access device, described switch controller is connected with described change-over switch, when described switch controller detects civil power regular supply, described change-over switch is switched to described civil power access device to provide power supply by civil power, when described switch controller detects that commercial power supply interrupts, described change-over switch is switched to described uninterrupted power source device to provide power supply by described uninterrupted power source device, described switch controller is also during described uninterrupted power source device provides power supply, determine that whether controlling described change-over switch is switched to described solar powered device to be powered by described solar powered device according to the dump energy of described uninterrupted power source device.
More specifically, described based in danger alarm platform in corner in the elevator of radio communication: described user input device and described static memory are all arranged in the car of described elevator agent structure.
More specifically, described based in danger alarm platform in corner in the elevator of radio communication: described camera is high-definition camera, the resolution of the real-time elevator image that shooting obtains is 3840 × 2160.
More specifically, described based in danger alarm platform in corner in the elevator of radio communication, also comprise: audio alert equipment, be connected with described Freescale IMX6 processor, for when receiving described corner danger alerting signal, play the audio alert file corresponding with described corner danger alerting signal.
More specifically, described based in danger alarm platform in corner in the elevator of radio communication, also comprise: display device, the tip position of described elevator place building is arranged on together with described machine room opertaing device, described display device is connected respectively with described Freescale IMX6 processor and described image processor, for when receiving described corner danger alerting signal, show the real-time elevator image of described multiframe and the warning word corresponding with described corner danger alerting signal.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram based on danger alarm platform in corner in the elevator of radio communication illustrated according to an embodiment of the present invention.
Embodiment
Be described in detail based on the embodiment of corner danger alarm platform in the elevator of radio communication to of the present invention below with reference to accompanying drawings.
In prior art, on-the-spot camera, data transmission set and machine room display device are mainly comprised to the monitoring and alarming system of elevator interior, the on-the-spot camera be arranged in elevator is adopted to carry out real time image collection, data transmission set is manually differentiated in the image data transmission collected to the machine room display device of monitoring room for monitor staff, this identification method is wasted time and energy, intelligent level is not high, as can be seen here, need a kind of detection early warning system that the scene of violence may occur elevator interior that can detect, shorten the reaction time of supervision department.
Wherein, in elevator, the feature of corner Violent scene is: the spacing of each human body target is very little, and people's bulk area occurs that fluctuation is large, and the present position of human body target concentrates in preset range.
In order to overcome above-mentioned deficiency, the present invention builds a kind of based on incident of violence early warning system in the elevator of image procossing, multiple high precision image checkout equipment and elevator main body is organically combined, realize to the concrete scene of expection effective, detect in real time.
Fig. 1 is the block diagram based on danger alarm platform in corner in the elevator of radio communication illustrated according to an embodiment of the present invention, described platform comprises camera 1, image processor 2, Wireless Telecom Equipment 3 and Freescale IMX6 processor 4, described camera 1 obtains real-time elevator image for taking lift car, described image processor 2 is connected with described camera 1, for performing image procossing to extract contextual data to described real-time elevator image, described Freescale IMX6 processor 4 is connected respectively with described image processor 2 and described Wireless Telecom Equipment 3, for determining whether that based on the contextual data extracted realizing corner danger by described Wireless Telecom Equipment 3 reports to the police.
Then, continue to be further detailed based on the concrete structure of corner danger alarm platform in the elevator of radio communication of the present invention.
Described platform also comprises: user input device, for the operation according to user, receive the human body gray scale upper limit threshold of user's input, human body gray scale lower threshold, preset interval detection time, preset shooting quantity, area change rate threshold value, predeterminable range threshold value and default active area threshold value, described human body gray scale upper limit threshold and described human body gray scale lower threshold are used for the human body in image and background separation, and the value of described human body gray scale upper limit threshold and described human body gray scale lower threshold is all between 0-255.
Described platform also comprises: static memory, be connected with described user input device, for receive and store described human body gray scale upper limit threshold, described human body gray scale lower threshold, described default detection time interval, described default shooting quantity, described area change rate threshold value, described predeterminable range threshold value and described default active area threshold value.
Described platform also comprises: elevator agent structure, by elevator car body equipment, machine room opertaing device, hoistway opertaing device and stop opertaing device composition, described elevator car body equipment comprises hoistway sensor, door lifter, emergency terminal switch, lead boots, operation panel in sedan-chair, sedan-chair frame, gate, safety tongs, trailing cable and car, described hoistway sensor, described door lifter, described emergency terminal switch and describedly lead the top that boots are all arranged on described car, in described sedan-chair, operation panel is arranged on the inside of described car, described sedan-chair frame is arranged on the exterior circumferential of described car, for fixing described car, described safety tongs is arranged on the bottom of described car, described trailing cable is arranged on the outside of described car, and described machine room opertaing device comprises speed reduction unit, drag running wheel, angle sheave, limiter of speed, detent, drag and draw machine, power switch and elevator power supply source, described hoistway opertaing device comprises rail brackets, drag and draw wire rope, switch touches iron, guide rail, counterweight, compensated chain, compensated chain guide wheel, tensioning system, fag end combination and impact damper, described counterweight is fixed on the below of described car by described fag end combination, described compensated chain, described compensated chain guide wheel and described tensioning system are successively set on the below of described counterweight in accordance with the order from top to bottom, and described stop opertaing device is arranged on every first floor layer, comprises call box, floor pilot lamp and layer door.
Described camera 1 is arranged in described car, is connected with described static memory, to automatically snap the real-time elevator image of multiframe presetting shooting quantity successively based on interval described default detection time.
Described image processor 2 is connected with described camera 1 and described static memory, to receive the real-time elevator image of described multiframe respectively, described image processor 2 comprises edge enhancer device, the sub-device of wavelet filtering, the sub-device of gray processing process, target recognin device and data and extracts sub-device; Described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are combined for performing contextual data extraction process to the real-time elevator image of each frame:
Described edge enhancer device is connected with described camera 1, strengthens process for performing edge to the real-time elevator image of each frame, strengthens image to obtain each frame; The sub-device of described wavelet filtering is connected with described edge enhancer device, performs wavelet filtering process, to obtain each frame filtering image for strengthening image based on HAAR wavelet filter to each frame; The sub-device of described gray processing process is connected with the sub-device of described wavelet filtering, for performing gray processing process, to obtain each frame gray processing car image to each frame filtering image; Described target recognin device is connected respectively with the sub-device of described gray processing process and described static memory, and the pixel of gray-scale value between described human body gray scale upper limit threshold and described human body gray scale lower threshold in each frame gray processing car image is formed multiple target gray subimage; Described data are extracted sub-device and are connected with described target recognin device, calculate the position of form center of relative distance between the area of each target, every two targets and each target based on described multiple target gray subimage.
Described Freescale IMX6 processor 4 extracts sub-device with described data and described static memory is connected respectively, the area of each target corresponding based on the real-time elevator image of each frame and the position of form center of each target calculate the real-time area change rate mean value of each target and the scope of activities of each target respectively, and be greater than described area change rate threshold value at the real-time area change rate mean value of all targets, relative distance between all every two targets is less than described predeterminable range threshold value and the scope of activities area occupied of all targets is less than default active area threshold value, then assert that there is violence implementer forces corner to implement the sight of violence the violence person of being implemented, send corner danger alerting signal.
Described Wireless Telecom Equipment 3 is connected respectively with described Freescale IMX6 processor 4 and described image processor 2, for when receiving described corner danger alerting signal, real-time for described multiframe elevator image is carried out MPEG-4 compressed encoding, and the multiframe compressed image after compressed encoding and described corner danger alerting signal are sent to the internal network of elevator responsible department or the mobile terminal of elevator responsible official by 4G communication network.
Wherein, described Freescale IMX6 processor 4 is based on the real-time area change rate mean value of each target of areal calculation of each target corresponding to the real-time elevator image of each frame, be specially, for each target, calculate the area change rate of this target of the real-time elevator image of two frames of adjacent shooting time according to the shooting time tandem of real-time elevator image, and the real-time area change rate mean value obtaining this target is averaged to the multiple area change rates calculated, described Freescale IMX6 processor 4 calculates the scope of activities of each target based on the position of form center of each target corresponding to the real-time elevator image of each frame, be specially, for each target, link together the position of form center of all real-time elevator images obtained scope, described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are integrated in one piece of fpga chip, elevator power supply source in described elevator agent structure comprises solar powered device, uninterrupted power source device, civil power access device, change-over switch and switch controller, described change-over switch and described solar powered device, described uninterrupted power source device is connected respectively with described civil power access device, described switch controller is connected with described change-over switch, when described switch controller detects civil power regular supply, described change-over switch is switched to described civil power access device to provide power supply by civil power, when described switch controller detects that commercial power supply interrupts, described change-over switch is switched to described uninterrupted power source device to provide power supply by described uninterrupted power source device, described switch controller is also during described uninterrupted power source device provides power supply, determine that whether controlling described change-over switch is switched to described solar powered device to be powered by described solar powered device according to the dump energy of described uninterrupted power source device.
Alternatively, in described platform: described user input device and described static memory are all arranged in the car of described elevator agent structure; Described camera 1 is high-definition camera, and the resolution of the real-time elevator image that shooting obtains is 3840 × 2160; Described platform also comprises: audio alert equipment, is connected with described Freescale IMX6 processor 4, for when receiving described corner danger alerting signal, plays the audio alert file corresponding with described corner danger alerting signal; Display device, the tip position of described elevator place building is arranged on together with described machine room opertaing device, described display device is connected respectively with described Freescale IMX6 processor 4 and described image processor 2, for when receiving described corner danger alerting signal, show the real-time elevator image of described multiframe and the warning word corresponding with described corner danger alerting signal.
In addition, FPGA, i.e. field-programmable gate array, it is the product further developed on the basis of the programming devices such as PAL, GAL, CPLD, occur as a kind of semi-custom circuit in application-specific integrated circuit ASIC field, he solves the deficiency in custom circuit, also overcomes a limited number of shortcoming of original programming device gate circuit.
FPGA adopts the such concept of logical cell array LCA, and inside comprises configurable logic blocks CLB, input/output module IOB and interconnector three parts.Field-programmable gate array FPGA is programming device, and compare with gate array (programming device such as such as PAL, GAL, CPLD) with conventional logic circuit, FPGA has different structure.FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combinational logic, each look-up table is connected to the input end of a d type flip flop, trigger drives other logical circuits again or drives I/O, thus constitute the basic logic unit module that not only can realize combination logic function but also can realize sequential logic function, these modules utilize metal connecting line to be connected to each other or are connected to I/O module.
The key distinction of FPGA and CPLD is: CPLD is a somewhat restrictive structure, and this structure is arranged by the logical groups of one or more editable result sum and forms with the register of the locking of some relatively small amounts, and it lacks editor's dirigibility; And FPGA has a lot of linkage units, him is allowed to edit more neatly like this.
Adopt of the present invention based on danger alarm platform in corner in the elevator of radio communication, lacking for prior art forces corner to implement the problem of the testing mechanism of the sight of violence the violence person of being implemented to violence implementer in elevator, adopt the detection of multiple high-precision image processing equipment realization to predetermined scene, these image processing equipments can also organically combine with elevator agent structure, to ensure while providing Violent scene early warning, safeguard the normal operation of elevator.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (6)
1., based on a danger alarm method in corner in the elevator of radio communication, the method comprises:
1) provide a kind of based on danger alarm platform in corner in the elevator of radio communication, described platform comprises camera, image processor, Wireless Telecom Equipment and Freescale IMX6 processor, described camera is used for taking to obtain real-time elevator image to lift car, described image processor is connected with described camera, for performing image procossing to extract contextual data to described real-time elevator image, described Freescale IMX6 processor is connected respectively with described image processor and described Wireless Telecom Equipment, for determining whether that based on the contextual data extracted realizing corner danger by described Wireless Telecom Equipment reports to the police,
2) use described alarm platform to report to the police.
2. the method for claim 1, is characterized in that, described platform also comprises:
User input device, for the operation according to user, receive the human body gray scale upper limit threshold of user's input, human body gray scale lower threshold, preset interval detection time, preset shooting quantity, area change rate threshold value, predeterminable range threshold value and default active area threshold value, described human body gray scale upper limit threshold and described human body gray scale lower threshold are used for the human body in image and background separation, and the value of described human body gray scale upper limit threshold and described human body gray scale lower threshold is all between 0-255;
Static memory, be connected with described user input device, for receive and store described human body gray scale upper limit threshold, described human body gray scale lower threshold, described default detection time interval, described default shooting quantity, described area change rate threshold value, described predeterminable range threshold value and described default active area threshold value;
Elevator agent structure, by elevator car body equipment, machine room opertaing device, hoistway opertaing device and stop opertaing device composition, described elevator car body equipment comprises hoistway sensor, door lifter, emergency terminal switch, lead boots, operation panel in sedan-chair, sedan-chair frame, gate, safety tongs, trailing cable and car, described hoistway sensor, described door lifter, described emergency terminal switch and describedly lead the top that boots are all arranged on described car, in described sedan-chair, operation panel is arranged on the inside of described car, described sedan-chair frame is arranged on the exterior circumferential of described car, for fixing described car, described safety tongs is arranged on the bottom of described car, described trailing cable is arranged on the outside of described car, and described machine room opertaing device comprises speed reduction unit, drag running wheel, angle sheave, limiter of speed, detent, drag and draw machine, power switch and elevator power supply source, described hoistway opertaing device comprises rail brackets, drag and draw wire rope, switch touches iron, guide rail, counterweight, compensated chain, compensated chain guide wheel, tensioning system, fag end combination and impact damper, described counterweight is fixed on the below of described car by described fag end combination, described compensated chain, described compensated chain guide wheel and described tensioning system are successively set on the below of described counterweight in accordance with the order from top to bottom, and described stop opertaing device is arranged on every first floor layer, comprises call box, floor pilot lamp and layer door,
Described camera is arranged in described car, is connected with described static memory, to automatically snap the real-time elevator image of multiframe presetting shooting quantity successively based on interval described default detection time;
Described image processor is connected with described camera and described static memory, to receive the real-time elevator image of described multiframe respectively, described image processor comprises edge enhancer device, the sub-device of wavelet filtering, the sub-device of gray processing process, target recognin device and data and extracts sub-device; Described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are combined for performing contextual data extraction process to the real-time elevator image of each frame: described edge enhancer device is connected with described camera, strengthening process for performing edge to the real-time elevator image of each frame, strengthening image to obtain each frame; The sub-device of described wavelet filtering is connected with described edge enhancer device, performs wavelet filtering process, to obtain each frame filtering image for strengthening image based on HAAR wavelet filter to each frame; The sub-device of described gray processing process is connected with the sub-device of described wavelet filtering, for performing gray processing process, to obtain each frame gray processing car image to each frame filtering image; Described target recognin device is connected respectively with the sub-device of described gray processing process and described static memory, and the pixel of gray-scale value between described human body gray scale upper limit threshold and described human body gray scale lower threshold in each frame gray processing car image is formed multiple target gray subimage; Described data are extracted sub-device and are connected with described target recognin device, calculate the position of form center of relative distance between the area of each target, every two targets and each target based on described multiple target gray subimage;
Described Freescale IMX6 processor extracts sub-device with described data and described static memory is connected respectively, the area of each target corresponding based on the real-time elevator image of each frame and the position of form center of each target calculate the real-time area change rate mean value of each target and the scope of activities of each target respectively, and be greater than described area change rate threshold value at the real-time area change rate mean value of all targets, relative distance between all every two targets is less than described predeterminable range threshold value and the scope of activities area occupied of all targets is less than default active area threshold value, then assert that there is violence implementer forces corner to implement the sight of violence the violence person of being implemented, send corner danger alerting signal,
Described Wireless Telecom Equipment, be connected respectively with described Freescale IMX6 processor and described image processor, for when receiving described corner danger alerting signal, real-time for described multiframe elevator image is carried out MPEG-4 compressed encoding, and the multiframe compressed image after compressed encoding and described corner danger alerting signal are sent to the internal network of elevator responsible department or the mobile terminal of elevator responsible official by 4G communication network;
Wherein, described Freescale IMX6 processor is based on the real-time area change rate mean value of each target of areal calculation of each target corresponding to the real-time elevator image of each frame, be specially, for each target, calculate the area change rate of this target of the real-time elevator image of two frames of adjacent shooting time according to the shooting time tandem of real-time elevator image, and the real-time area change rate mean value obtaining this target is averaged to the multiple area change rates calculated;
Wherein, described Freescale IMX6 processor calculates the scope of activities of each target based on the position of form center of each target corresponding to the real-time elevator image of each frame, be specially, for each target, link together the position of form center of all real-time elevator images obtained scope;
Wherein, described edge enhancer device, the sub-device of described wavelet filtering, the sub-device of described gray processing process, described target recognin device and described data are extracted sub-device and are integrated in one piece of fpga chip;
Wherein, elevator power supply source in described elevator agent structure comprises solar powered device, uninterrupted power source device, civil power access device, change-over switch and switch controller, described change-over switch and described solar powered device, described uninterrupted power source device is connected respectively with described civil power access device, described switch controller is connected with described change-over switch, when described switch controller detects civil power regular supply, described change-over switch is switched to described civil power access device to provide power supply by civil power, when described switch controller detects that commercial power supply interrupts, described change-over switch is switched to described uninterrupted power source device to provide power supply by described uninterrupted power source device, described switch controller is also during described uninterrupted power source device provides power supply, determine that whether controlling described change-over switch is switched to described solar powered device to be powered by described solar powered device according to the dump energy of described uninterrupted power source device.
3. method as claimed in claim 2, is characterized in that: described user input device and described static memory are all arranged in the car of described elevator agent structure.
4. method as claimed in claim 2, is characterized in that: described camera is high-definition camera, and the resolution of the real-time elevator image that shooting obtains is 3840 × 2160.
5. method as claimed in claim 2, it is characterized in that, described platform also comprises: audio alert equipment, is connected with described Freescale IMX6 processor, for when receiving described corner danger alerting signal, play the audio alert file corresponding with described corner danger alerting signal.
6. method as claimed in claim 2, it is characterized in that, described platform also comprises: display device, the tip position of described elevator place building is arranged on together with described machine room opertaing device, described display device is connected respectively with described Freescale IMX6 processor and described image processor, for when receiving described corner danger alerting signal, show the real-time elevator image of described multiframe and the warning word corresponding with described corner danger alerting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510468710.1A CN105139577A (en) | 2015-08-02 | 2015-08-02 | Danger alarm method for inner corner of elevator based on wireless communication |
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| CN201510468710.1A CN105139577A (en) | 2015-08-02 | 2015-08-02 | Danger alarm method for inner corner of elevator based on wireless communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256623A (en) * | 2017-02-22 | 2017-10-17 | 许兰兰 | Signal data is received and processing system |
| CN108487818A (en) * | 2017-05-23 | 2018-09-04 | 泉州有刺电子商务有限责任公司 | A kind of security window control platform |
| CN109101863A (en) * | 2018-03-01 | 2018-12-28 | 曹婷 | Weather danger alarm method based on image analysis |
-
2015
- 2015-08-02 CN CN201510468710.1A patent/CN105139577A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256623A (en) * | 2017-02-22 | 2017-10-17 | 许兰兰 | Signal data is received and processing system |
| CN107256623B (en) * | 2017-02-22 | 2018-08-14 | 兰州飞天网景信息产业有限公司 | Signal data receives and processing system |
| CN108487818A (en) * | 2017-05-23 | 2018-09-04 | 泉州有刺电子商务有限责任公司 | A kind of security window control platform |
| CN109101863A (en) * | 2018-03-01 | 2018-12-28 | 曹婷 | Weather danger alarm method based on image analysis |
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Application publication date: 20151209 |