CN204886986U - Wireless early warning broadcast machine with local and long -range recording function of collecting evidence - Google Patents

Wireless early warning broadcast machine with local and long -range recording function of collecting evidence Download PDF

Info

Publication number
CN204886986U
CN204886986U CN201520664141.3U CN201520664141U CN204886986U CN 204886986 U CN204886986 U CN 204886986U CN 201520664141 U CN201520664141 U CN 201520664141U CN 204886986 U CN204886986 U CN 204886986U
Authority
CN
China
Prior art keywords
pole
electric capacity
operational amplifier
resistance
positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201520664141.3U
Other languages
Chinese (zh)
Inventor
贺新
肖廷亭
丁胜
李冰源
王勤
范栩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Wanjiang Gangli Technology Co ltd
Original Assignee
CHENGDU WANJIANG GANGLI TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU WANJIANG GANGLI TECHNOLOGY Co Ltd filed Critical CHENGDU WANJIANG GANGLI TECHNOLOGY Co Ltd
Priority to CN201520664141.3U priority Critical patent/CN204886986U/en
Application granted granted Critical
Publication of CN204886986U publication Critical patent/CN204886986U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Selective Calling Equipment (AREA)

Abstract

The utility model discloses a wireless early warning broadcast machine with local and long -range recording function of collecting evidence, including control center and controller, still be provided with signal transceiver, GPRS module, audio input equipment, memory, solar cell and loudspeaker on this controller, and this controller passes through signal transceiver and control center wireless connection, be provided with audio circuit in loudspeaker, still be provided with signal transmission circuit in signal transceiver. The utility model provides a wireless early warning broadcast machine with local and long -range recording function of collecting evidence can let the relevant better calamity information of learning of personnel when the early warning to select more pertinent mode to deal with, fine protection people's the safety of life and property.

Description

There is the wireless alarming speech amplifier of local and remote recording evidence obtaining function
Technical field
The utility model belongs to disaster safe early warning field, particularly a kind of wireless alarming speech amplifier with local and remote recording evidence obtaining function for field.
Background technology
Society, the natural calamity in field takes place frequently, the serious fail safe that have impact on people's life, and then the fail safe of people to environment is more paid close attention to.And existing equipment only can adopt original the tinkle of bells to carry out early warning when carrying out early warning in the wild; be difficult to allow the personnel be in prewarning area learn the relevant information of the condition of a disaster; thus make related personnel be difficult to adopt correct mode to carry out keeping away calamity; and the condition of a disaster occur in each second be all very valuable; if do not take correct mode evade disaster or prevent; the life safety of the related personnel of impact that will be serious, is unfavorable for life and the property of protecting people.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above; provide the wireless alarming speech amplifier with local and remote recording evidence obtaining function; related personnel can be allowed better disaster information is learnt when early warning; thus select more appropriate mode to tackle, well protect the life of people and the safety of property.
To achieve these goals, the utility model realizes by the following technical solutions:
There is the wireless alarming speech amplifier of local and remote recording evidence obtaining function, comprise control centre and controller, this controller is also provided with signal transceiver, GPRS module, audio input device, memory, solar cell and loudspeaker, and this controller is by signal transceiver and control centre's wireless connections, in loudspeaker, be provided with acoustics circuit, in signal transceiver, be also provided with signal transmission circuit.
Further, above-mentioned acoustics circuit is by operational amplifier P1, operational amplifier P2, slide rheostat RP1, loudspeaker BL1, negative pole is connected with the sliding end of slide rheostat RP1, the electric capacity C2 that positive pole is connected with the positive input terminal of operational amplifier P1, negative pole is connected with one end of slide rheostat RP1, the electric capacity C3 that positive pole is connected with the positive pole of electric capacity C2 after resistance R2, the resistance R3 be arranged in parallel with electric capacity C3, one end is connected with the positive pole of electric capacity C3, the resistance R1 that the other end is connected with the positive power source terminal of operational amplifier P1, negative pole is connected with the negative pole of electric capacity C3, the electric capacity C4 that positive pole is connected with the negative input end of operational amplifier P1 after resistance R4, be serially connected in the resistance R5 between the negative input end of operational amplifier P1 and output, P pole is connected with the negative pole of electric capacity C4, the diode D2 that N pole is connected with the output of op-amp P1, N pole is connected with the positive power source terminal of operational amplifier P1, the diode D1 that P pole is connected with the N pole of diode D2, positive pole is connected with the N pole of diode D1, the electric capacity C1 of minus earth, negative pole is connected with the negative pole of electric capacity C4, the electric capacity C5 that positive pole is connected with the P pole of diode D1 after resistance R6, positive pole is connected with the P pole of diode D1, the electric capacity C6 that negative pole is connected with the positive input terminal of operational amplifier P12 after resistance R7, be serially connected in the resistance R8 between the positive input terminal of operational amplifier P2 and output, positive pole is connected with the negative input end of operational amplifier P2, the electric capacity C7 that negative pole is connected with the negative pole of electric capacity C4, and positive pole is connected with the output of operational amplifier P2, the electric capacity C8 that negative pole is connected with the input of loudspeaker BL1 forms, wherein, one end of slide rheostat RP1 as input, the minus earth of electric capacity C4, the negative pole of electric capacity C4 is also connected with the negative power end of operational amplifier P1, the positive pole of electric capacity C1 is also connected to input power, and the negative pole of electric capacity C7 is connected with the output of loudspeaker BL1.
Further, above-mentioned signal transmission circuit is by operational amplifier P3, operational amplifier P4, triode VT1, triode VT2, antenna N, transformer T1, the resistance R9 that one end is connected with the base stage of triode VT1, positive pole is connected with the base stage of triode VT1, the electric capacity C9 that negative pole is connected with the Same Name of Ends of the primary coil of transformer T1, positive pole is connected with the collector electrode of triode VT1, the electric capacity C10 that negative pole is connected with the negative pole of electric capacity C9, positive pole is connected with the positive pole of electric capacity C10, the electric capacity C11 that negative pole is connected with the base stage of triode VT2, be serially connected in the resistance R10 between the base stage of triode VT2 and emitter, one end is connected with the collector electrode of triode VT2, the inductance L 1 that the other end is connected with the non-same polarity of the primary coil of transformer T1, positive pole is connected with the collector electrode of triode VT2, negative pole is in turn through inductance L 2, the electric capacity C12 be connected with the negative input end of operational amplifier P3 after resistance R11, positive pole is connected with the positive input terminal of operational amplifier P3, the electric capacity C13 of minus earth, be serially connected in the resistance R12 between the negative input end of operational amplifier P3 and output, positive pole is connected with the output of operational amplifier P3, the electric capacity C14 that negative pole is connected with the negative input end of operational amplifier P4 after resistance R13, be serially connected in the resistance R14 between the negative input end of operational amplifier P4 and output, positive pole is connected with the positive input terminal of operational amplifier P4, the electric capacity C15 of minus earth, P pole is connected with the negative pole of electric capacity C15, the diode D4 that N pole is connected with the output of operational amplifier P4 after electric capacity C16, P pole is connected with the N pole of diode D4, the diode D3 that N pole is connected with antenna N, positive pole is connected with antenna N, the electric capacity C17 that negative pole is connected with the P pole of diode D4, and form with the resistance R15 that electric capacity C17 is arranged in parallel, wherein, the grounded emitter of triode VT1, the other end of resistance R9 and the link of resistance R10 and triode VT2 are jointly as input, the Same Name of Ends of the secondary coil of transformer T1 is connected to the input voltage of 9V, non-same polarity is connected with the positive pole of electric capacity C11, the positive input terminal of operational amplifier P3 and operational amplifier P4 is connected to respectively the input voltage of 5V.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
(1) the utility model is provided with solar cell, making equipment operationally without the need to carrying out long-range pulling strings, greatly reducing the laying cost of equipment, needed for the operation that can be good at support equipment, improves the running time of equipment.
(2) the utility model the utility model is provided with memory, can by stored therein for early warning sound, play when needs early warning, also be provided with audio input device in addition, make product can carry out the typing of audio frequency in erecting bed, better actual user demand of having fitted, can the situation different according to locality record prompt tone.
(3) the utility model is provided with GPRS module, control centre can be made better to position the position residing for controller, thus make more reasonably to be distributed by the location of control centre when needing to arrange many motors control device, improve the utilance of resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit diagram of acoustics circuit of the present utility model.
Fig. 3 is the circuit diagram of signal transmission circuit of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment 1
As shown in Figure 1, the utility model comprises control centre and controller, this controller is also provided with signal transceiver, GPRS module, audio input device, memory, solar cell and loudspeaker, and this controller is by signal transceiver and control centre's wireless connections, in loudspeaker, be provided with acoustics circuit, in signal transceiver, be also provided with signal transmission circuit.The memory device that memory is wherein SD card or is connected with controller by USB interface.
During installation, the good position of daylighting is first selected to set up solar cell, then controller is connected with solar cell, and the loudspeaker frame be connected with this controller is located at higher position so that the long-range transmission of early warning information, SD card or memory device are connected on the controller, and controller is connected with control centre by wireless network, early warning sound is preserved in SD card wherein or memory device, this early warning sound can shift to an earlier date typing, also on-the-spot typing can be carried out in erecting bed by audio input device, by controller, concrete data parameters is arranged after equipment installation, thus make product that different early warning sounds can be selected to report when carrying out different early warning.
As shown in Figure 2, above-mentioned acoustics circuit by operational amplifier P1, operational amplifier P2, slide rheostat RP1, loudspeaker BL1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C8, diode D1, and diode D2 forms.
During connection, the negative pole of electric capacity C2 is connected with the sliding end of slide rheostat RP1, positive pole is connected with the positive input terminal of operational amplifier P1, the negative pole of electric capacity C3 is connected with one end of slide rheostat RP1, positive pole is connected with the positive pole of electric capacity C2 after resistance R2, resistance R3 and electric capacity C3 is arranged in parallel, one end of resistance R1 is connected with the positive pole of electric capacity C3, the other end is connected with the positive power source terminal of operational amplifier P1, the negative pole of electric capacity C4 is connected with the negative pole of electric capacity C3, positive pole is connected with the negative input end of operational amplifier P1 after resistance R4, between the negative input end that resistance R5 is serially connected in operational amplifier P1 and output, the P pole of diode D2 is connected with the negative pole of electric capacity C4, N pole is connected with the output of op-amp P1, the N pole of diode D1 is connected with the positive power source terminal of operational amplifier P1, P pole is connected with the N pole of diode D2, the positive pole of electric capacity C1 is connected with the N pole of diode D1, minus earth, the negative pole of electric capacity C5 is connected with the negative pole of electric capacity C4, positive pole is connected with the P pole of diode D1 after resistance R6, the positive pole of electric capacity C6 is connected with the P pole of diode D1, negative pole is connected with the positive input terminal of operational amplifier P12 after resistance R7, between the positive input terminal that resistance R8 is serially connected in operational amplifier P2 and output, the positive pole of electric capacity C7 is connected with the negative input end of operational amplifier P2, negative pole is connected with the negative pole of electric capacity C4, the positive pole of electric capacity C8 is connected with the output of operational amplifier P2, negative pole is connected with the input of loudspeaker BL1, wherein, one end of slide rheostat RP1 as input, the minus earth of electric capacity C4, the negative pole of electric capacity C4 is also connected with the negative power end of operational amplifier P1, the positive pole of electric capacity C1 is also connected to input power, and the negative pole of electric capacity C7 is connected with the output of loudspeaker BL1.
As shown in Figure 3, above-mentioned signal transmission circuit by operational amplifier P3, operational amplifier P4, triode VT1, triode VT2, antenna N, transformer T1, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, electric capacity C16, electric capacity C17, inductance L 1, inductance L 2, diode D3, and diode D4 forms.
During connection, one end of resistance R9 is connected with the base stage of triode VT1, the positive pole of electric capacity C9 is connected with the base stage of triode VT1, negative pole is connected with the Same Name of Ends of the primary coil of transformer T1, the positive pole of electric capacity C10 is connected with the collector electrode of triode VT1, negative pole is connected with the negative pole of electric capacity C9, the positive pole of electric capacity C11 is connected with the positive pole of electric capacity C10, negative pole is connected with the base stage of triode VT2, between the base stage that resistance R10 is serially connected in triode VT2 and emitter, one end of inductance L 1 is connected with the collector electrode of triode VT2, the other end is connected with the non-same polarity of the primary coil of transformer T1, the positive pole of electric capacity C12 is connected with the collector electrode of triode VT2, negative pole is in turn through inductance L 2, be connected with the negative input end of operational amplifier P3 after resistance R11, the positive pole of electric capacity C13 is connected with the positive input terminal of operational amplifier P3, minus earth, between the negative input end that resistance R12 is serially connected in operational amplifier P3 and output, the positive pole of electric capacity C14 is connected with the output of operational amplifier P3, negative pole is connected with the negative input end of operational amplifier P4 after resistance R13, between the negative input end that resistance R14 is serially connected in operational amplifier P4 and output, the positive pole of electric capacity C15 is connected with the positive input terminal of operational amplifier P4, minus earth, the P pole of diode D4 is connected with the negative pole of electric capacity C15, N pole is connected with the output of operational amplifier P4 after electric capacity C16, the P pole of diode D3 is connected with the N pole of diode D4, N pole is connected with antenna N, electric capacity C17 positive pole is connected with antenna N, negative pole is connected with the P pole of diode D4, resistance R15 and electric capacity C17 is arranged in parallel, wherein, the grounded emitter of triode VT1, the other end of resistance R9 and the link of resistance R10 and triode VT2 are jointly as input, the Same Name of Ends of the secondary coil of transformer T1 is connected to the input voltage of 9V, non-same polarity is connected with the positive pole of electric capacity C11, the positive input terminal of operational amplifier P3 and operational amplifier P4 is connected to respectively the input voltage of 5V.
Embodiment 2
The difference of the present embodiment and embodiment 1 with, be connected with several controllers in the heart in the controlling, and each controller is all positioned by GPRS module, so just can be monitored distributing position of the present utility model by control centre easily, the setting position of early warning speech amplifier more reasonably can be set, further increase the effect of early warning.
By said method, just well the utility model can be realized.

Claims (3)

1. there is the wireless alarming speech amplifier of local and remote recording evidence obtaining function, it is characterized in that, comprise control centre and controller, this controller is also provided with signal transceiver, GPRS module, audio input device, memory, solar cell and loudspeaker, and this controller is by signal transceiver and control centre's wireless connections, in loudspeaker, be provided with acoustics circuit, in signal transceiver, be also provided with signal transmission circuit.
2. the wireless alarming speech amplifier with local and remote recording evidence obtaining function according to claim 1, it is characterized in that, described acoustics circuit is by operational amplifier P1, operational amplifier P2, slide rheostat RP1, loudspeaker BL1, negative pole is connected with the sliding end of slide rheostat RP1, the electric capacity C2 that positive pole is connected with the positive input terminal of operational amplifier P1, negative pole is connected with one end of slide rheostat RP1, the electric capacity C3 that positive pole is connected with the positive pole of electric capacity C2 after resistance R2, the resistance R3 be arranged in parallel with electric capacity C3, one end is connected with the positive pole of electric capacity C3, the resistance R1 that the other end is connected with the positive power source terminal of operational amplifier P1, negative pole is connected with the negative pole of electric capacity C3, the electric capacity C4 that positive pole is connected with the negative input end of operational amplifier P1 after resistance R4, be serially connected in the resistance R5 between the negative input end of operational amplifier P1 and output, P pole is connected with the negative pole of electric capacity C4, the diode D2 that N pole is connected with the output of op-amp P1, N pole is connected with the positive power source terminal of operational amplifier P1, the diode D1 that P pole is connected with the N pole of diode D2, positive pole is connected with the N pole of diode D1, the electric capacity C1 of minus earth, negative pole is connected with the negative pole of electric capacity C4, the electric capacity C5 that positive pole is connected with the P pole of diode D1 after resistance R6, positive pole is connected with the P pole of diode D1, the electric capacity C6 that negative pole is connected with the positive input terminal of operational amplifier P12 after resistance R7, be serially connected in the resistance R8 between the positive input terminal of operational amplifier P2 and output, positive pole is connected with the negative input end of operational amplifier P2, the electric capacity C7 that negative pole is connected with the negative pole of electric capacity C4, and positive pole is connected with the output of operational amplifier P2, the electric capacity C8 that negative pole is connected with the input of loudspeaker BL1 forms, wherein, one end of slide rheostat RP1 as input, the minus earth of electric capacity C4, the negative pole of electric capacity C4 is also connected with the negative power end of operational amplifier P1, the positive pole of electric capacity C1 is also connected to input power, and the negative pole of electric capacity C7 is connected with the output of loudspeaker BL1.
3. the wireless alarming speech amplifier with local and remote recording evidence obtaining function according to claim 2, it is characterized in that, described signal transmission circuit is by operational amplifier P3, operational amplifier P4, triode VT1, triode VT2, antenna N, transformer T1, the resistance R9 that one end is connected with the base stage of triode VT1, positive pole is connected with the base stage of triode VT1, the electric capacity C9 that negative pole is connected with the Same Name of Ends of the primary coil of transformer T1, positive pole is connected with the collector electrode of triode VT1, the electric capacity C10 that negative pole is connected with the negative pole of electric capacity C9, positive pole is connected with the positive pole of electric capacity C10, the electric capacity C11 that negative pole is connected with the base stage of triode VT2, be serially connected in the resistance R10 between the base stage of triode VT2 and emitter, one end is connected with the collector electrode of triode VT2, the inductance L 1 that the other end is connected with the non-same polarity of the primary coil of transformer T1, positive pole is connected with the collector electrode of triode VT2, negative pole is in turn through inductance L 2, the electric capacity C12 be connected with the negative input end of operational amplifier P3 after resistance R11, positive pole is connected with the positive input terminal of operational amplifier P3, the electric capacity C13 of minus earth, be serially connected in the resistance R12 between the negative input end of operational amplifier P3 and output, positive pole is connected with the output of operational amplifier P3, the electric capacity C14 that negative pole is connected with the negative input end of operational amplifier P4 after resistance R13, be serially connected in the resistance R14 between the negative input end of operational amplifier P4 and output, positive pole is connected with the positive input terminal of operational amplifier P4, the electric capacity C15 of minus earth, P pole is connected with the negative pole of electric capacity C15, the diode D4 that N pole is connected with the output of operational amplifier P4 after electric capacity C16, P pole is connected with the N pole of diode D4, the diode D3 that N pole is connected with antenna N, positive pole is connected with antenna N, the electric capacity C17 that negative pole is connected with the P pole of diode D4, and form with the resistance R15 that electric capacity C17 is arranged in parallel, wherein, the grounded emitter of triode VT1, the other end of resistance R9 and the link of resistance R10 and triode VT2 are jointly as input, the Same Name of Ends of the secondary coil of transformer T1 is connected to the input voltage of 9V, non-same polarity is connected with the positive pole of electric capacity C11, the positive input terminal of operational amplifier P3 and operational amplifier P4 is connected to respectively the input voltage of 5V.
CN201520664141.3U 2015-08-28 2015-08-28 Wireless early warning broadcast machine with local and long -range recording function of collecting evidence Active CN204886986U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520664141.3U CN204886986U (en) 2015-08-28 2015-08-28 Wireless early warning broadcast machine with local and long -range recording function of collecting evidence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520664141.3U CN204886986U (en) 2015-08-28 2015-08-28 Wireless early warning broadcast machine with local and long -range recording function of collecting evidence

Publications (1)

Publication Number Publication Date
CN204886986U true CN204886986U (en) 2015-12-16

Family

ID=54831306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520664141.3U Active CN204886986U (en) 2015-08-28 2015-08-28 Wireless early warning broadcast machine with local and long -range recording function of collecting evidence

Country Status (1)

Country Link
CN (1) CN204886986U (en)

Similar Documents

Publication Publication Date Title
US20200068524A1 (en) Power storage management system, information processing apparatus, power storage apparatus, method of operating power storage management system, and method of operating information processing apparatus
CN204409232U (en) Pet training apparatus
CN109270866A (en) A kind of wisdom classroom cloud control platform control system
CN104422088A (en) Air-conditioning apparatus
CN105185042A (en) Wireless early warning broadcast machine having linkage alarm function
CN204463805U (en) Smart electronics piano
CN204759809U (en) Learner -driven vehicle has device that carries out dual control to coach and student
CN108831454A (en) A kind of mobile phone searching method and system based on intelligent sound box
CN101984788B (en) Voice-operated bark stopper
CN204886986U (en) Wireless early warning broadcast machine with local and long -range recording function of collecting evidence
CN202075878U (en) Multimedia teaching control system
CN204886985U (en) Wireless early warning broadcast machine who realizes differentiated control is controlled to multicenter
CN102436608A (en) Elevator maintenance control method by utilizing RF-SIM card and system thereof
CN105225422A (en) By the wireless alarming speech amplifier that bluetooth and wifi control
CN204884109U (en) Wireless early warning broadcast machine with theftproof of multichannel loudspeaker detects
CN105243850A (en) Method for managing and controlling vehicle horn through employing new information technology
CN203773779U (en) Piano learning machine
CN204143721U (en) Electric power knowledge teaching instrument
CN105139655B (en) The horn for vehicle of application generation information technology uses managing and control system
CN203386380U (en) Intelligent college student voice learning device
CN202887734U (en) Field recorder for trade negotiations
CN106162440A (en) Intelligent horn controller
CN204926498U (en) Horn for vehicle of using information technology of new generation uses management and control system
CN201156329Y (en) Alarming demonstration apparatus for resistance wire cutting
CN205943043U (en) Power utilization information acquisition system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Guanghua village street Qingyang District 610000 in Sichuan Province, Chengdu City No. 4 Building 1, No. 102

Patentee after: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

Address before: Guanghua village street Qingyang District 610000 in Sichuan Province, Chengdu City No. 4 Building 1, No. 102

Patentee before: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Wireless early warning broadcast machine with local and long -range recording function of collecting evidence

Effective date of registration: 20180412

Granted publication date: 20151216

Pledgee: Bank of Dalian Co.,Ltd. Chengdu Branch

Pledgor: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

Registration number: 2018510000005

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20201015

Granted publication date: 20151216

Pledgee: Bank of Dalian Co.,Ltd. Chengdu Branch

Pledgor: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

Registration number: 2018510000005

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Wireless early warning broadcasting machine with local and remote recording and forensics functions

Effective date of registration: 20201027

Granted publication date: 20151216

Pledgee: Bank of Dalian Co.,Ltd. Chengdu Branch

Pledgor: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

Registration number: Y2020980007191

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20231204

Granted publication date: 20151216

Pledgee: Bank of Dalian Co.,Ltd. Chengdu Branch

Pledgor: CHENGDU WANJIANG GANGLI TECHNOLOGY Co.,Ltd.

Registration number: Y2020980007191