CN204906554U - Network digital video recorder - Google Patents
Network digital video recorder Download PDFInfo
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- CN204906554U CN204906554U CN201520705813.0U CN201520705813U CN204906554U CN 204906554 U CN204906554 U CN 204906554U CN 201520705813 U CN201520705813 U CN 201520705813U CN 204906554 U CN204906554 U CN 204906554U
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- video recorder
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- disk video
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Abstract
The application discloses network digital video recorder. Wherein, this network digital video recorder includes: temperature sensor, temperature sensor sets up inside network digital video recorder for detect the inside real -time temperature of network digital video recorder, the heater block, the heater block sets up inside network digital video recorder for heat inside to network digital video recorder, controller, controller are establish the communication with temperature sensor and are connected, establish the electricity with the heater block and are connected for real -time temperature controlled heating part according to from reading among the temperature sensor heats network digital video recorder's inside. This application has been solved because of external environment temperature is low excessively among the prior art, leads to the technical problem of the unable normal work of network digital video recorder.
Description
Technical field
The application relates to safety-security area, in particular to a kind of network hard disk video recorder.
Background technology
At present, for the network hard disk video recorder NVR (NetworkVideoRecorder) in security protection industry, there is part for the highstrung components and parts of working temperature because it is inner, such as: POE power management chip, hard disk etc.So, when installing NVR equipment, in the middle of the operational environment needing to be installed on more than 0 DEG C.Therefore, in the region of outdoor temperature lower than 0 DEG C, NVR can only be laid in indoor and use, thus the demand cannot monitored outdoor area by existing NVR equipment.
For in prior art because ambient temperature is too low, cause the problem that network hard disk video recorder cannot normally work, not yet propose effective solution at present.
Application content
Present embodiments provide a kind of network hard disk video recorder, at least to solve in prior art because ambient temperature is too low, cause the technical problem that network hard disk video recorder cannot normally work.
According to an aspect of the present embodiment, provide a kind of network hard disk video recorder, comprising: temperature sensor, temperature sensor is arranged at network hard disk video recorder inside, for the real time temperature of Sampling network DVR inside; Heater block, heater block is arranged at network hard disk video recorder inside, for heating the inside of network hard disk video recorder; Controller, between controller with temperature sensor, communication is connected, and is electrically connected with between heater block, heats for controlling the inside of heater block to network hard disk video recorder according to the real time temperature read from temperature sensor.
Further, heater block comprises: electric heating piece, is electrically connected between electric heating piece with controller, for heating the inside of network hard disk video recorder; Radiator fan, is electrically connected between radiator fan with controller, spreads in network hard disk video recorder inside for the heat generated electric heating piece.
Further, controller comprises: main control chip, and between main control chip with temperature sensor, communication is connected, for generating heating instructions and/or instruction of dispelling the heat according to real time temperature and the comparison result of the temperature threshold pre-set; Heating controller, between heating controller with main control chip, communication is connected, and is electrically connected with between electric heating piece, heats for controlling the inside of electric heating piece to network hard disk video recorder according to heating instructions; Fan governor, between fan governor with main control chip, communication is connected, and is electrically connected with between radiator fan, spreads the heat that electric heating piece generates for controlling radiator fan according to heat radiation instruction.
Further, main control chip is MCS-51 single-chip microcomputer.
Further, controller also comprises: clock circuit, is connected with communication between main control chip, for providing operation clock signal for main control chip.
Further, clock circuit adopts crystal clock circuit.
Further, electric heating piece is scheduled on the inwall of network hard disk video recorder cabinet by silica gel solid.
Further, the specification of electric heating piece is 50mm × 40mm × 2mm.
Further, in temperature sensor, comprise at least two thermistors, thermistor is arranged at the inside of network hard disk video recorder.
Further, network hard disk video recorder also comprises: electric power management circuit, between electric power management circuit with controller, communication is connected, be electrically connected between electric power management circuit and the mainboard of network hard disk video recorder, electric power management circuit is used for the control command sent according to controller, controls the main board power supply whether to network hard disk video recorder.
The technical scheme of application the application, provide a kind of network hard disk video recorder, by temperature sensor, temperature sensor is arranged at network hard disk video recorder inside, for the real time temperature of Sampling network DVR inside; Heater block, heater block is arranged at network hard disk video recorder inside, for heating the inside of network hard disk video recorder; Controller, between controller with temperature sensor, communication is connected, be electrically connected with between heater block, heat for controlling the inside of heater block to network hard disk video recorder according to the real time temperature read from temperature sensor, thus reach the object making network hard disk video recorder not be subject to the impact of ambient temperature, achieve technique effect network hard disk video recorder heated according to ambient temperature, to solve in prior art because ambient temperature is too low, cause the technical problem that network hard disk video recorder cannot normally work.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of network hard disk video recorder according to the present embodiment;
Fig. 2 is the structural representation of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 3 is the circuit diagram of the heating controller of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 4 a is the circuit diagram of the fan governor control section of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 4 b be according to a kind of optional network hard disk video recorder of the present embodiment with the equivalent circuit diagram of radiator fan connectivity port part;
Fig. 5 is the structural representation of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 6 a is the circuit diagram of the main control chip of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 6 b is the circuit diagram of the reset circuit of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 6 c is the circuit diagram of the burning debug circuit of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 7 a is the circuit diagram of the temperature sensor Part I of a kind of optional network hard disk video recorder according to the present embodiment;
Fig. 7 b is the circuit diagram of the temperature sensor Part II of a kind of optional network hard disk video recorder according to the present embodiment; And
Fig. 8 is the structural representation of a kind of optional network hard disk video recorder according to the present embodiment.
Embodiment
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the present embodiment, the technical scheme in the present embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the specification of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as the embodiment of the application described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.
As shown in Figure 1, present embodiments provide a kind of embodiment of network hard disk video recorder, network hard disk video recorder comprises: temperature sensor 10, heater block 20 and controller 30.
Wherein, temperature sensor 10, temperature sensor 10 is arranged at network hard disk video recorder inside, for the real time temperature of Sampling network DVR inside; Heater block 20, heater block 20 is arranged at network hard disk video recorder inside, for heating the inside of network hard disk video recorder; Controller 30, between controller 30 with temperature sensor 10, communication is connected, and is electrically connected with between heater block 20, heats for the inside controlling heater block 20 pairs of network hard disk video recorders according to the real time temperature read from temperature sensor 10.
Concrete, in the inside of network hard disk video recorder, set temperature transducer 10, heater block 20 and controller 30.The real time temperature of the network hard disk video recorder inside collected according to temperature sensor 10 by controller 30, the inside controlling heater block 20 pairs of network hard disk video recorders is heated.Thus reach the object making network hard disk video recorder not be subject to the impact of ambient temperature, achieve technique effect network hard disk video recorder heated according to ambient temperature, to solve in prior art because ambient temperature is too low, cause network hard disk video recorder cannot normal operating technology problem.
As an optional embodiment, as shown in Figure 2, above-mentioned heater block 20 comprises: electric heating piece 21 and radiator fan 23.
Wherein, electric heating piece 21, is electrically connected between electric heating piece 21 with controller 30, for heating the inside of network hard disk video recorder; Radiator fan 23, is electrically connected between radiator fan 23 with controller 30, spreads in network hard disk video recorder inside for the heat generated electric heating piece 21.
Concrete, in low temperature environment, heated by electric heating piece 21 pairs of network hard disk video recorder inside, make it can reach predetermined working temperature.By radiator fan 23, can accelerate the air exchange speed of network hard disk video recorder inside, the heat that electric heating piece 21 is produced is passed to each position of network hard disk video recorder inside fast.
As an optional embodiment, as shown in Figure 2, above-mentioned controller 30 comprises: main control chip 31, heating controller 33 and fan governor 35.
Wherein, main control chip 31, between main control chip 31 with temperature sensor 10, communication is connected, for generating heating instructions and/or instruction of dispelling the heat according to real time temperature and the comparison result of the temperature threshold pre-set; Heating controller 33, between heating controller 33 with main control chip 31, communication is connected, and is electrically connected with between electric heating piece 21, heats for the inside controlling electric heating piece 21 pairs of network hard disk video recorders according to heating instructions; Fan governor 35, between fan governor 35 with main control chip 31, communication is connected, and is electrically connected with between radiator fan 23, and the heat generated for controlling radiator fan 23 pairs of electric heating pieces 21 according to heat radiation instruction spreads.
Concrete, Fig. 3 is the circuit diagram of a kind of optional heating controller 33 according to the present embodiment, and Fig. 4 a and Fig. 4 b is the circuit diagram of a kind of optional fan governor 35 according to the present embodiment.Set up between heating controller 33 with electric heating piece 21 and be electrically connected, set up between fan governor 35 with radiator fan 23 and be electrically connected.Main control chip 31 is set up communication with heating controller 33, fan governor 35 and temperature sensor 10 respectively and is connected.After network hard disk video recorder powers on, first detected the real time temperature of current network hard disc video recorder case inside by main control chip 31.Compare according to current real time temperature and 0 DEG C, judge whether to send heating signal to heating controller 33, control electric heating piece 21 pairs of cabinet insides by heating controller 33 and heat.
Wherein, as shown in Figure 3, in the middle of practical application, in heating controller, 5 pin of CON1 port are the power pins of electric heating piece, 4 pin are the ground pin of electric heating piece, are closed the electric heating piece work and closedown that reach and control to be connected by CON1 interface by the conducting of Single-chip Controlling triode QA1 and MOSFET pipe QP1.
As shown in figures 4 a and 4b, connected by 12VFAN port between Fig. 4 a and Fig. 4 b.Fan governor is controlled the turn-on and turn-off of triode QA3 and MOSFET pipe QA2 by FAN_CTRL port by main control chip, thus whether the power supply 12V_FAN controlling radiator fan has electricity.Wherein, CON2 is our powering port for the 12V of radiator fan of selecting.
As an optional embodiment, main control chip 31 is MCS-51 single-chip microcomputer.
As an optional embodiment, as shown in Figure 5, above-mentioned controller 30 also comprises: clock circuit 37.Wherein, clock circuit 37, is connected with communication between main control chip 31, for providing operation clock signal for main control chip 31.
As an optional embodiment, clock circuit 37 adopts crystal clock circuit 37.
Concrete, Fig. 6 a is the circuit diagram of a kind of optional main control chip 31 according to the present embodiment.In the middle of practical application, main control chip 31 can select a working range can support the 51 kernel low cost monolithic machines of-40 DEG C, thus ensure that at low ambient temperatures, and main control chip can often work.
Wherein, as shown in Figure 6 a, C1, C2, X1, R1 are the crystal clock circuit of single-chip microcomputer.As shown in Figure 6 b, above-mentioned controller 30 can also comprise the reset circuit of the controller 30 be made up of R4, C5, C6, is connected between reset circuit with controller 30 by 5vMCU port.As fig. 6 c, above-mentioned controller 30 can also comprise burning debug circuit, and burning debug circuit constitutes the online burning debug port of controller 39 by each signal on ICSP1 and pin thereof.DOME-TEMP1 and DOME-TEMP2 is the temperature sampling value input port of two-way temperature sensor, be connected with the temperature sensor 10 be made up of two thermistors in Fig. 7 a and Fig. 7 b respectively by DOME-TEMP1 with DOME-TEMP2, HEATER-CTRL is the port controlling heating module, FAN_CTRL is the port controlling fan, EN_POWER is the port of controller mainboard power-on and power-off, and LED1 is the indicator light whether instruction current device opens heating module.
As an optional embodiment, electric heating piece 21 is scheduled on the inwall of network hard disk video recorder cabinet by silica gel solid.
As an optional embodiment, the specification of electric heating piece 21 is 50mm × 40mm × 2mm.
Concrete, the silica gel electric heating plate that electric heating piece 21 can be selected, electric heating piece 21 can be one piece and be of a size of 50mm*40mm*2mm, and rated power is the high temperature resistant silica gel electric heating plate of 48V/40W.Wherein, electric heating piece 21 can be fixed on network hard disk video recorder cabinet on side box wall.
As an optional embodiment, in temperature sensor 10, comprise at least two thermistors, thermistor is arranged at the inside of network hard disk video recorder.
As an optional embodiment, as shown in figs. 7 a and 7b, two thermistors are set in temperature sensor 10, and load constant voltage at two thermistor two ends.Because of the characteristic of thermistor, namely resistance can change along with the change of temperature.Magnitude of voltage that can be corresponding according to different temperatures, inputs to main control chip and carries out sampling processing, and then obtain current real-time temperature values by magnitude of voltage.Optionally, can be local in the difference of network hard disk video recorder cabinet inside, two temperature sensors 10 are set, the average temperature value of network hard disk video recorder cabinet inside can be obtained by above-mentioned two temperature sensors 10.
As an optional embodiment, as shown in Figure 8, network hard disk video recorder also comprises: electric power management circuit 40.Wherein, electric power management circuit 40, between electric power management circuit 40 with controller 30, communication is connected, be electrically connected between electric power management circuit 40 and the mainboard 50 of network hard disk video recorder, whether the control command of electric power management circuit 40 for sending according to controller 30, control to power to the mainboard 50 of network hard disk video recorder.
Concrete, between electric power management circuit 40 with controller 30, set up communication be connected, set up between electric power management circuit 40 and the mainboard 50 of network hard disk video recorder and be electrically connected.According to temperature sensor 10, controller 30 judges whether current real time temperature reaches the working temperature of network hard disk video recorder.When real time temperature meets the working temperature of network hard disk video recorder, to electric power management circuit 40 sending controling instruction, electric power management circuit 40 is powered to the mainboard 50 of network hard disk video recorder.
The application, by access control device, temperature sensor, heater block on the mainboard of legacy network DVR, just can make network hard disk video recorder be normally work in the adverse circumstances of subzero about 30 DEG C in temperature.Above-described embodiment has simple and practical, and the advantage that cost is low.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in the application.
Claims (10)
1. a network hard disk video recorder, is characterized in that, described network hard disk video recorder comprises:
Temperature sensor, it is inner that described temperature sensor is arranged at described network hard disk video recorder, for detecting the real time temperature of described network hard disk video recorder inside;
Heater block, it is inner that described heater block is arranged at described network hard disk video recorder, for heating the inside of described network hard disk video recorder;
Controller, described controller is connected with described temperature sensor communication, being electrically connected with described heater block, heating for controlling the inside of described heater block to described network hard disk video recorder according to the described real time temperature read from described temperature sensor.
2. network hard disk video recorder according to claim 1, is characterized in that, described heater block comprises:
Electric heating piece, is electrically connected between described electric heating piece with described controller, for heating the inside of described network hard disk video recorder;
Radiator fan, is electrically connected between described radiator fan with described controller, spreads in described network hard disk video recorder inside for the heat generated described electric heating piece.
3. network hard disk video recorder according to claim 2, is characterized in that, described controller comprises:
Main control chip, between described main control chip with described temperature sensor, communication is connected, for generating heating instructions and/or instruction of dispelling the heat according to described real time temperature and the comparison result of the temperature threshold pre-set;
Heating controller, between described heating controller with described main control chip, communication is connected, and is electrically connected with between described electric heating piece, heats for controlling the inside of described electric heating piece to described network hard disk video recorder according to described heating instructions;
Fan governor, between described fan governor with described main control chip, communication is connected, and is electrically connected with between described radiator fan, spreads the heat that described electric heating piece generates for controlling described radiator fan according to described heat radiation instruction.
4. network hard disk video recorder according to claim 3, is characterized in that, described main control chip is MCS-51 single-chip microcomputer.
5. network hard disk video recorder according to claim 3, is characterized in that, described controller also comprises:
Clock circuit, between setting up with described main control chip, communication is connected, for providing operation clock signal for described main control chip.
6. network hard disk video recorder according to claim 5, is characterized in that, described clock circuit adopts crystal clock circuit.
7. network hard disk video recorder according to claim 2, is characterized in that, described electric heating piece is scheduled on the inwall of described network hard disk video recorder cabinet by silica gel solid.
8. network hard disk video recorder according to claim 7, is characterized in that, the specification of described electric heating piece is 50mm × 40mm × 2mm.
9. network hard disk video recorder according to claim 1, is characterized in that, in described temperature sensor, comprise at least two thermistors, described thermistor is arranged at the inside of described network hard disk video recorder.
10. network hard disk video recorder as claimed in any of claims 1 to 9, is characterized in that, described network hard disk video recorder also comprises:
Electric power management circuit, between described electric power management circuit with described controller, communication is connected, be electrically connected between described electric power management circuit with the mainboard of described network hard disk video recorder, described electric power management circuit is used for the control command that sends according to described controller, controls the described main board power supply whether to described network hard disk video recorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705813.0U CN204906554U (en) | 2015-09-11 | 2015-09-11 | Network digital video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705813.0U CN204906554U (en) | 2015-09-11 | 2015-09-11 | Network digital video recorder |
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| CN204906554U true CN204906554U (en) | 2015-12-23 |
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| CN201520705813.0U Active CN204906554U (en) | 2015-09-11 | 2015-09-11 | Network digital video recorder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856422A (en) * | 2019-11-25 | 2020-02-28 | 国网新疆电力有限公司乌鲁木齐供电公司 | SDH equipment fan control device and method |
| CN114326857A (en) * | 2021-12-30 | 2022-04-12 | 中国商用飞机有限责任公司 | Digital image processing error active temperature compensation device and method under low temperature condition |
-
2015
- 2015-09-11 CN CN201520705813.0U patent/CN204906554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856422A (en) * | 2019-11-25 | 2020-02-28 | 国网新疆电力有限公司乌鲁木齐供电公司 | SDH equipment fan control device and method |
| CN114326857A (en) * | 2021-12-30 | 2022-04-12 | 中国商用飞机有限责任公司 | Digital image processing error active temperature compensation device and method under low temperature condition |
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