CN111146715B - Outdoor weak current case based on thing networking is used - Google Patents

Outdoor weak current case based on thing networking is used Download PDF

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Publication number
CN111146715B
CN111146715B CN202010043220.8A CN202010043220A CN111146715B CN 111146715 B CN111146715 B CN 111146715B CN 202010043220 A CN202010043220 A CN 202010043220A CN 111146715 B CN111146715 B CN 111146715B
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China
Prior art keywords
resistor
operational amplifier
controller
grounded
box body
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CN202010043220.8A
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Chinese (zh)
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CN111146715A (en
Inventor
徐建
来国红
黄勇
易金桥
刘三军
孙先波
李敏
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Hubei University for Nationalities
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Hubei University for Nationalities
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H02B1/48—Mounting of devices therein
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations

Abstract

The invention provides an outdoor weak current box based on the use of the Internet of things, which comprises a box body, a box door arranged on the box body, and further comprises: the buffering rain shielding device is arranged at the top end of the box body; the box is internally provided with: the environment detection device in the box body and the power module are respectively and electrically connected with the controller; an alarm is arranged outside the box body and electrically connected with the controller; the controller is further connected with the monitoring terminal through the Internet of things. The invention can prolong the service life of the weak current box.

Description

Outdoor weak current case based on thing networking is used
Technical Field
The invention relates to the technical field of weak current boxes, in particular to an outdoor weak current box based on the use of the Internet of things.
Background
In a weak current construction engineering project, a weak current box is indispensable equipment, the weak current box is divided into an indoor weak current box and an outdoor weak current box according to practical requirements, the indoor weak current box is generally arranged at a passageway entrance or an indoor house entrance, the indoor weak current box generally comprises a box body and a box door, and various connector lugs are arranged in the box body; most outdoor weak current boxes are directly exposed outside, the existing outdoor weak current boxes are usually shielded by rain baffles directly connected to the top ends of box bodies, so that rain and snow are not buffered, the rain baffles and the weak current boxes are greatly damaged when the rain and snow are large, and the service life of the weak current boxes is influenced; in addition, the sun is large in summer, so that the temperature in the box is very high, the existing light-current box usually dissipates heat through the heat dissipation holes, the heat dissipation effect is poor, and the service life of the light-current box is influenced.
Disclosure of Invention
The invention provides an outdoor weak current box based on the use of the Internet of things, which is used for solving at least one of the technical problems.
The utility model provides an outdoor weak current case based on thing networking is used, includes the box and locates the chamber door on the box, still includes:
the buffering rain shielding device is arranged at the top end of the box body;
the box is internally provided with: the environment detection device in the box body and the power module are respectively and electrically connected with the controller;
an alarm is arranged outside the box body and electrically connected with the controller;
the controller is further connected with the monitoring terminal through the Internet of things.
Preferably, the apparatus for detecting an internal environment of the cabinet includes:
temperature sensor, humidity sensor, smoke sensor;
the temperature sensor, the humidity sensor and the smoke sensor are respectively and electrically connected with the controller.
Preferably, the buffering rain shielding device comprises:
a first rainwater collection tank;
the baffle plate is fixedly connected in the first rainwater collecting tank;
the plurality of hollow cylinders are arranged at the lower end of the first rainwater collecting tank at intervals and are vertically arranged, and the lower ends of the hollow cylinders are open;
the second connecting springs are sleeved on the outer walls of the hollow cylinders in a one-to-one correspondence mode, one ends of the second connecting springs are fixedly connected with the bottom end of the first rainwater collecting tank, and the other ends of the second connecting springs are fixedly connected with the top end of the box body;
the vertical fixing rods are fixed at the top end of the box body in one-to-one correspondence with the hollow cylinders and extend into the hollow cylinders;
the side wall of the baffle is provided with a rainwater guide groove communicated to the first rainwater collecting groove.
Preferably, the top end of the baffle is provided with a groove, one end, away from the rainwater collecting tank, of the first rainwater guide groove is communicated with the groove, and the first rainwater collecting tank is provided with a drain pipe.
Preferably, the buffering rain shielding device comprises:
a second rainwater collection tank;
the plurality of buffer plates are horizontally arranged in the second rainwater collecting tank at intervals;
the upper ends of the first connecting springs are fixedly connected with the lower end of the buffer plate, and the lower ends of the first connecting springs are fixedly connected with the bottom of the second rainwater collecting tank;
the side wall of the bottom of the second rainwater collecting groove is provided with a drain pipe.
Preferably, the second rainwater collection tank includes: the device comprises a first half groove body and a second half groove body, wherein the outer wall of the bottom end of the first half groove body is provided with two first sliding grooves which are parallel to each other, the inner wall of the bottom end of the second half groove body is provided with two fourth sliding blocks, and the two fourth sliding blocks are respectively connected in the two first sliding grooves in a sliding manner;
the light current case still includes:
the two vertical supporting rods are arranged on the first half groove body, the two vertical supporting rods are respectively positioned on one side, away from the side wall of the second half groove body, of the two first sliding grooves, and the upper ends of the vertical supporting rods are fixedly connected with the lower end of the first half groove body;
the two second fixed blocks are arranged at the top end of the box body, the two second fixed blocks and the two vertical supporting rods are arranged in a one-to-one correspondence mode, and the lower ends of the vertical supporting rods are fixedly connected with the upper ends of the second fixed blocks;
the upper ends of the two third connecting rods are respectively arranged on two sides of the second rainwater collecting tank along the direction parallel to the first sliding groove, and the upper ends of the third connecting rods are hinged with the side face of the second half groove body;
the upper ends of the two fourth connecting rods are respectively hinged with the lower ends of the two third connecting rods;
the two first fixed blocks correspond to the two fourth connecting rods one by one and are arranged in the middle of the top end of the box body, and the lower ends of the fourth connecting rods are hinged with the first fixed blocks;
the two first electric telescopic rods are respectively connected to the upper parts of the positions, on the same side of the second half-groove body, between the vertical supporting rod and the third connecting rod, the fixed ends of the first electric telescopic rods are fixedly connected with the vertical supporting rod, and the telescopic ends of the first electric telescopic rods are fixedly connected with the third connecting rod;
the solar cell panel is arranged at the top end of the box body and is close to one side, far away from the first half groove body, of the second half groove body, and the first electric telescopic rod stretches and retracts to enable the second rainwater collecting tank to shield the solar cell panel or expose the solar cell panel;
the rain and snow sensor is arranged on the side wall of the first half groove body or the second half groove body;
the solar controller is electrically connected with the solar panel, and the power supply module comprises a storage battery;
the solar controller, the storage battery, the first electric telescopic rod and the rain and snow sensor are electrically connected with the controller respectively.
Preferably, the heat sink includes:
the sliding rail is fixedly connected to the middle of the top end in the box body and is horizontally arranged;
the ventilation holes are formed in the top end of the box body and located on two sides of the sliding rail, and a filter screen is arranged in the box body corresponding to the ventilation holes;
the two first sliding blocks are connected in the sliding rail in a sliding manner;
the two first connecting rods are respectively connected to the bottom ends of the two first sliding blocks;
the top end of the mounting plate is fixedly connected with the two first connecting rods;
the second electric telescopic rod is fixedly connected to the top end in the box body through a fixing frame and is positioned on one side of the sliding rail, the second electric telescopic rod is parallel to the sliding rail, and the second electric telescopic rod is fixedly connected with one first sliding block;
the mounting plate comprises a first vertical rod and a second vertical rod, wherein the first vertical rod and the second vertical rod are horizontally arranged at the lower end of the mounting plate at intervals;
the rotating motor is fixedly connected to the lower end of the mounting plate and located between the first vertical rod and the second vertical rod, and an output shaft of the rotating motor is arranged downwards vertically;
the threaded rod is vertically arranged, and the lower end of the threaded rod is fixedly connected with an output shaft of the rotating motor;
the two bearing blocks are arranged on the first vertical rod at intervals up and down, and two ends of the threaded rod are respectively connected with the bearings on the two bearing blocks;
the second sliding chute is arranged on one side, close to the rotating motor, of the first vertical rod;
the second sliding block is provided with a vertical threaded hole, and the threaded hole is sleeved on the threaded rod and is in threaded fit with the threaded rod;
one side of the third sliding block is connected in the second sliding groove in a sliding manner, and the other side of the third sliding block is fixedly connected with the second sliding block;
the upper end of the second connecting rod is fixedly connected with the third sliding block or the second sliding block, and the lower end of the second connecting rod is fixedly connected with the fan;
the fan, the rotating motor and the second electric telescopic rod are all electrically connected with the controller.
Preferably, the temperature sensor is connected with the controller through a first sensing circuit, and the controller controls the fan to work through the control circuit;
the first sensing circuit includes:
the non-inverting input end of the second operational amplifier is grounded;
one end of the fourth resistor is connected with the output end of the second operational amplifier, the other end of the fourth resistor is connected with the inverting input end of the second operational amplifier, and the temperature sensor is connected with the fourth resistor in parallel;
one end of the fifth resistor is connected with the inverting input end of the second operational amplifier, the other end of the fifth resistor is connected with one end of the sixth resistor, and the other end of the sixth resistor is connected with the power supply;
a seventeenth resistor connected in parallel with the fifth resistor;
the positive electrode of the photoelectric isolator is connected with the output end of the second operational amplifier, the negative electrode and the emitting electrode of the photoelectric isolator are grounded, and the collector of the photoelectric isolator is grounded through a first capacitor and a second resistor;
one end of the first resistor is connected with a collector electrode of the photoelectric isolator;
the inverting input end of the first operational amplifier is connected with the other end of the first resistor, the non-inverting input end of the first operational amplifier is grounded, and the output end of the first operational amplifier is connected with the controller;
one end of the third resistor is connected with the inverting input end of the first operational amplifier, and the other end of the third resistor is connected with the output end of the first operational amplifier;
the controller is also connected with a voltage detection circuit, the voltage detection circuit is used for detecting the voltage of the fan during working, and the weak current box further comprises a first feedback circuit and a second feedback circuit;
a first feedback circuit comprising: the inverting input end of the third operational amplifier is connected with the detection voltage output by the voltage detection circuit, and the non-inverting input end of the third operational amplifier is connected with the first reference voltage; one end of the eleventh resistor is connected with the first reference voltage, and the other end of the eleventh resistor is grounded; one end of the tenth resistor is connected with the first reference voltage, and the other end of the tenth resistor is connected with the power supply; one end of the eighth resistor is connected with the power supply, and the other end of the eighth resistor is connected with the output end of the third operational amplifier; one end of the ninth resistor is connected with the output end of the third operational amplifier, and the other end of the ninth resistor is grounded; one end of the seventh resistor is connected with the controller, and the other end of the seventh resistor is connected with the grounding end of the ninth resistor;
a second feedback circuit comprising: the inverting input end of the fourth operational amplifier is connected with the detection voltage output by the voltage detection circuit, and the non-inverting input end of the fourth operational amplifier is connected with the second reference voltage; one end of the fifteenth resistor is connected with the second reference voltage, and the other end of the fifteenth resistor is grounded; one end of the sixteenth resistor is connected with the second reference voltage, and the other end of the sixteenth resistor is connected with the power supply; one end of the fourteenth resistor is connected with the non-inverting input end of the fourth operational amplifier, and the other end of the fourteenth resistor is connected with the power supply; one end of the thirteenth resistor is connected with the power supply, and the other end of the thirteenth resistor is connected with the output end of the fourth operational amplifier; one end of the twelfth resistor is connected with the output end of the fourth operational amplifier, and the other end of the twelfth resistor is grounded; and one end of the thirty-eighth resistor is connected with the controller, and the other end of the thirty-eighth resistor is connected with the grounding end of the twelfth resistor.
Preferably, an automatic fire extinguisher is installed in the box body and is electrically connected with the controller;
the smoke sensor is used for collecting smoke concentration information in the box body and transmitting the smoke concentration information to the controller, the controller stores weak-current box identity information, and the weak-current box identity information comprises: the number of the weak current box and the geographical position information of the weak current box;
the controller receives the smoke concentration information transmitted by the smoke sensor, judges whether the smoke concentration value in the box body is larger than a preset smoke concentration standard value or not according to the smoke concentration information, controls the automatic fire extinguisher to start to extinguish a fire if the smoke concentration value in the box body is larger than the preset smoke concentration standard value, controls the alarm to give an alarm, and simultaneously sends alarm information and weak battery identity information to the monitoring terminal;
the smoke sensor is provided with a second sensing circuit, the second sensing circuit includes:
an emitter of the second crystal triode is grounded through a fifteenth resistor, a base of the second crystal triode is grounded through a fourteenth resistor and is connected with a second power supply through a sixteenth resistor;
the inductor comprises a second crystal diode and a third crystal diode, the cathode of the second crystal diode is connected with the collector of a third crystal triode, the anode of the second crystal diode is connected with a second power supply through a thirteenth resistor, and the cathode of the third crystal diode is grounded;
the non-inverting input end of the seventh operational amplifier is connected with the anode of the third transistor diode through a ninth capacitor and is grounded through a thirty-one resistor, and the inverting input end of the seventh operational amplifier is grounded through a tenth capacitor;
a thirtieth resistor, one end of which is connected with the inverting input end of the seventh operational amplifier and the other end of which is connected with the output end of the seventh operational amplifier;
the non-inverting input end of the sixth operational amplifier is connected with the output end of the seventh operational amplifier through a twenty-ninth resistor and is grounded through a twenty-eighteenth resistor, and the inverting input end of the sixth operational amplifier is grounded through a twenty-seventh resistor;
one end of the fifth capacitor is connected with the inverting input end of the sixth operational amplifier, and the other end of the fifth capacitor is connected with the output end of the sixth operational amplifier;
a thirty-seventh resistor, a first end of which is connected with the output end of the sixth operational amplifier, and a second end of which is grounded through a sixth capacitor;
the controller comprises: automatic fire extinguishing and alarm control circuit, automatic fire extinguishing and alarm control circuit includes:
the non-inverting input end of the fifth operational amplifier is connected with the second end of the thirty-seventh resistor;
the first switch is connected with a first end of a first power supply through a voltage stabilizing circuit;
a twenty-third resistor, a first end of the twenty-third resistor being connected to the first end of the first switch and to the inverting input terminal of the fifth operational amplifier, a second end of the twenty-third resistor being grounded;
one end of the twenty-second resistor is connected with the non-inverting input end of the fifth operational amplifier, and the other end of the twenty-second resistor is connected with the first end of the first switch;
the anode of the fourth crystal diode is connected with the first end of the first switch, the cathode of the fourth crystal diode is connected with the first end of a twenty-first resistor, and the second end of the twenty-first resistor is connected with the output end of the fifth operational amplifier;
a base electrode of the first transistor is connected with the output end of the fifth operational amplifier through a twentieth resistor, and a collector electrode of the first transistor is grounded;
a negative electrode of the fifth crystal diode is connected with the first end of the first switch, and a positive electrode of the fifth crystal diode is connected with an emitting electrode of the transistor;
one end of the relay is connected with the first end of the first switch, and the other end of the relay is connected with the emitting electrode of the transistor;
the relay controls the second switch to be switched on and switched off, two pins at one end of the second switch are connected with the automatic fire extinguisher, two pins at the other end of the second switch are respectively connected with the first end of the first switch and one end of a nineteenth resistor, and the other end of the nineteenth resistor is grounded;
one end of the alarm is connected with the first end of the first switch, and the other end of the alarm is connected with the second end of the first power supply through an eighteenth resistor;
the voltage stabilizing circuit comprises:
the anode of the first crystal diode is connected with the first end of the first power supply;
the input end of the integrated chip is connected with the cathode of the first crystal diode, the pin for regulating the voltage of the integrated chip is grounded through the third capacitor, and the output end of the integrated chip is connected with the second switch;
one end of the second capacitor is connected with the input end of the integrated chip, and the other end of the second capacitor is grounded;
the cathode of the voltage comparator is connected with the output end of the integrated chip through a twenty-four resistor, the cathode of the voltage comparator is also connected with a feedback pin of the integrated chip, and the anode of the voltage comparator is grounded;
a twenty-fifth resistor, wherein the first end of the twenty-fifth resistor is connected with the output of the integrated chip, the second end of the twenty-fifth resistor is connected with the first end of a twenty-sixth resistor and a feedback pin of the voltage comparator, and the second end of the twenty-sixth resistor is grounded;
one end of the fourth capacitor is connected with the output of the integrated chip, and the other end of the fourth capacitor is connected with the second end of the twenty-sixth resistor;
and one end of the eighth capacitor is connected with the output of the integrated chip, and the other end of the eighth capacitor is connected with the second end of the twenty-sixth resistor.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a logical schematic block diagram of the present invention.
Fig. 3 is a front view of one embodiment of the cushioning rain shield of the present invention.
Fig. 4 is a schematic structural diagram of a heat dissipation device according to an embodiment of the invention.
Fig. 5 is a circuit diagram of a first sensing circuit, a first feedback circuit and a second feedback circuit according to the present invention.
FIG. 6 is a circuit diagram of a second sensing circuit, an automatic fire extinguishing and alarm control circuit, and a voltage stabilizing circuit according to the present invention.
In the figure: 1. a box body; 11. fixing a bracket; 12. an equipment mounting plate; 2. a box door; 3. a buffer rain shield; 31. a baffle plate; 311. a groove; 32. a hollow cylinder; 33. a vertical fixing rod; 34. a rainwater guide groove; 35. a first rainwater collection tank; 36. a drain pipe; 37. a second connecting spring; 38. a second rainwater collection tank; 381. a first half tank body; 382. a second half tank body; 383. a first chute; 384. a fourth slider; 39. a buffer plate; 310. a first connecting spring; 4. a heat sink; 41. a slide rail; 42. a first slider; 43. a first connecting rod; 44. mounting a plate; 45. a second electric telescopic rod; 46. a fixed mount; 47. a first vertical rod; 48. a second vertical rod; 49. a rotating electric machine; 410. a second slider; 411. a third slider; 412. a second connecting rod; 413. a fan; 414. a second chute; 415. a threaded rod; 416. a bearing seat; 5. a first electric telescopic rod; 6. a first fixed block; 7. a second fixed block; 8. a vertical support bar; 9. a third connecting rod; 91. a fourth connecting rod; 10. a solar panel; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; r9, ninth resistor; r10, tenth resistor; r11, eleventh resistor; r12, twelfth resistor; r13, thirteenth resistor; r14, fourteenth resistance; r15, fifteenth resistor; r16, sixteenth resistor; r17, seventeenth resistor; r18, eighteenth resistor; r19, nineteenth resistor; r20, twentieth resistor; r21, twenty-first resistance; r22, a twenty-second resistor; r23, a twenty-third resistor; r24, twenty-fourth resistor; r25, twenty-fifth resistor; r26, twenty-sixth resistance; r27, twenty-seventh resistor; r28, twenty-eighth resistance; r29, a twenty ninth resistor; r30, thirtieth resistor; r31, thirty-one resistor; r32, thirty-second resistance; r33, thirty-third resistor; r34, thirty-fourth resistor; r35, thirty-fifth resistor; r36, thirty-sixth resistor; r37, thirty-seventh resistor; r38, thirty-eighth resistance; v1, a first reference voltage; v2, a second reference voltage; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; c4, a fourth capacitance; c5, a fifth capacitance; c6, a sixth capacitor; c7, a seventh capacitance; c8, an eighth capacitor; c9, ninth capacitance; c10, tenth capacitance; u1, a first operational amplifier; u2, a second operational amplifier; u3, third operational amplifier; u4, fourth operational amplifier; u5, a photoelectric isolator; u6, fifth operational amplifier; u7, sixth operational amplifier; u8, seventh operational amplifier; u9, voltage comparator; d1, a first crystal diode; d2, a second crystal diode; d3, a third transistor diode; d4, a fourth crystal diode; d5, a fifth crystal diode; q1, the first transistor; q2, second transistor; j1, a first switch; j2, a second switch; j3, relay.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
The embodiment of the invention provides an outdoor weak battery box based on internet of things, which comprises a box body 1 and a box door 2 arranged on the box body 1 (preferably, the box door 2 is hinged with the box body 1, the box door 2 and the box body 1 are hermetically connected with an opening corresponding to the box door 2, and a door lock is arranged on the box door 2), and further comprises:
the buffering rain shielding device 3 is arranged at the top end of the box body 1;
the box body 1 is internally provided with: the power supply module (the power supply module can adopt the power supply module of the existing outdoor weak current box), the heat dissipation device 4, the controller and the box body 1 internal environment detection device are adopted, and the heat dissipation device 4, the box body 1 internal environment detection device and the power supply module are respectively and electrically connected with the controller;
an alarm is arranged outside the box body and electrically connected with the controller;
the controller is further connected with the monitoring terminal through the Internet of things. Preferably, the terminal is any one of a smart phone, a tablet computer or a computer.
Preferably, the equipment mounting plate (the equipment is the equipment which needs to be mounted in the existing outdoor weak current box) can be mounted by arranging a fixing strip in the box body, and the equipment mounting plate can be arranged in a plurality of numbers. Other structures of the weak current box are the prior art and are not described in detail herein.
The working principle and the beneficial effects of the technical scheme are as follows: the environment detection device inside the box body 1 is used for detecting environment parameter values (such as temperature values, humidity values, smoke concentration values and the like) inside the box body and transmitting the environment parameter values to the controller, and the controller transmits the environment parameter values to the control terminal in real time through a network; the controller is preset with box internal environment parameter threshold values, when the parameter value detected by the box 1 internal environment monitoring device exceeds the corresponding parameter threshold value, the controller alarms and transmits alarm information to the control terminal, the technical scheme is convenient for monitoring the box internal environment, so that the normal work of the weak current box is convenient to ensure, and the service life of the weak current box is prolonged.
The invention is provided with the buffering rain-shielding device 3, the buffering rain-shielding device 3 can shield rain and snow and has a buffering effect on rain and snow, the buffering effect is particularly obvious when the rain and snow are heavy, the weak current box (comprising the box body 1 and parts connected with the inside of the box body 1) and the buffering rain-shielding device 3 are prevented from being damaged, and the service lives of the buffering rain-shielding device 3 and the weak current box are prolonged. The heat dissipation device is arranged, the heat dissipation device is controlled to dissipate heat in the box body through the controller, the control is convenient, and compared with the existing heat dissipation through the heat dissipation holes, the heat dissipation can be accelerated.
In one embodiment, the apparatus for detecting the internal environment of the cabinet 1 includes: temperature sensor, humidity sensor, smoke sensor;
the temperature sensor, the humidity sensor and the smoke sensor are respectively and electrically connected with the controller.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature sensor is used for detecting a temperature value in the box body and transmitting the temperature value to the controller, the controller is preset with a temperature threshold, and when the temperature threshold is acquired by the temperature sensor, the controller controls the alarm to give an alarm;
the humidity sensor is used for detecting a humidity value in the box body and transmitting the humidity value to the controller, the controller is preset with a humidity threshold, and when the humidity acquired by the humidity sensor is greater than the humidity threshold, the controller controls the alarm to give an alarm;
the smoke sensor is used for detecting the smoke concentration value in the box body and transmitting the smoke concentration value to the controller, the controller is preset with a smoke concentration threshold, and when the smoke concentration value acquired by the smoke sensor is larger than the smoke concentration threshold, the controller controls the alarm to give an alarm. Preferably, the number of the alarms is three, and the temperature alarm, the humidity alarm and the smoke concentration alarm are respectively alarmed through one alarm.
In one embodiment, as shown in fig. 1, the rain-sheltering device 3 comprises:
a first rainwater collection tank 35;
the baffle plate 31 is fixedly connected into the first rainwater collecting tank 35;
the hollow cylinders 32 are arranged at the lower end of the first rainwater collecting tank 35 at intervals and are vertically arranged, and the lower ends of the hollow cylinders 32 are open;
the second connecting springs 37 are sleeved on the outer walls of the hollow cylinders 32 in a one-to-one correspondence manner, one end of each second connecting spring 37 is fixedly connected with the bottom end of the first rainwater collecting tank 35, and the other end of each second connecting spring is fixedly connected with the top end of the box body;
the vertical fixing rods 33 are fixed at the top end of the box body 1 in one-to-one correspondence with the hollow cylinders 32, and the vertical fixing rods 33 extend into the hollow cylinders 32;
the side wall of the baffle plate 31 is provided with a rainwater guide groove 34 communicated to the inside of a first rainwater collecting groove 35.
The top end of the baffle 31 is provided with a groove 311, one end of the rainwater guide groove 34 far away from the first rainwater collecting tank is communicated with the groove 311, and the first rainwater collecting tank is provided with a drain pipe 36.
The working principle and the beneficial effects of the technical scheme are as follows: in the technical scheme, rain and snow of the first connecting springs 37 are buffered (the second connecting springs 37 are stretched and retracted to play a buffering role), and the vertical fixing rods 33 move in the hollow cylinders to guide the stretching and retracting movement of the second connecting springs 37; the grooves 311 and the rainwater guide grooves 34 are arranged to collect and guide rainwater, and the rainwater can be conveniently drained through the drain pipes 36.
In one embodiment, as shown in fig. 3, the rain-sheltering device 3 comprises:
a second rainwater collection tank 38;
a plurality of buffer plates 39 horizontally arranged in the second rainwater collecting grooves 38 at intervals;
the first connecting springs 310 are vertically arranged, the upper ends of the first connecting springs 310 are fixedly connected with the lower end of the buffer plate 39, and the lower ends of the first connecting springs 310 are fixedly connected with the bottom of the second rainwater collecting groove 38;
the drain pipe 36 is arranged on the bottom side wall of the second rainwater collecting groove 38.
The working principle and the beneficial effects of the technical scheme are as follows: above-mentioned simple structure, it is better to connect spring combination buffering effect through buffer board and first.
In one embodiment, as shown in fig. 3, the second rainwater collection tank 38 includes: the first half-groove body 381 and the second half-groove body 382, the outer wall of the bottom end of the first half-groove body 381 is provided with two first sliding grooves 383 which are parallel to each other (preferably, as shown in fig. 3, the first sliding grooves 383 are horizontally arranged along the left-right direction, the two first sliding grooves 383 are arranged at the bottom end of the first half-groove body 381 in front of and behind each other), the inner wall of the bottom end of the second half-groove body 382 is provided with two fourth sliding blocks 384, and the two fourth sliding blocks 384 are respectively connected in the two first sliding grooves 383 in a sliding manner;
the light current case still includes:
the two vertical support rods 8 are arranged on the first half-groove body 381, the two vertical support rods 8 are respectively positioned on one side, away from the side wall of the second half-groove body 382, of the two first sliding grooves 383, and the upper end of each vertical support rod 8 is fixedly connected with the lower end of the first half-groove body 381;
the two second fixed blocks 7 are arranged at the top end of the box body 1, the two second fixed blocks and the two vertical supporting rods are arranged in a one-to-one correspondence mode, and the lower ends of the vertical supporting rods are fixedly connected with the upper ends of the second fixed blocks;
(preferably, the number of the second fixing blocks and the vertical support rods can be several, and the second fixing blocks are all located on one side of the first sliding groove 383 far away from the side wall of the second half-groove body 382, so that the support effect is better)
Two third connecting rods 9, wherein the upper ends of the two third connecting rods 9 are respectively arranged at two sides of the second rainwater collecting tank 38 in a direction parallel to the first sliding groove 383 (as shown in fig. 3, when the first sliding groove is in a left-right (front-back) direction, the two third connecting rods 9 are respectively hinged at the front-back (left-right) sides of the second rainwater collecting tank 38, and the upper end of the third connecting rod 9 is hinged with the side surface of the second half-tank body 382;
the upper ends of the two fourth connecting rods 91 are respectively hinged with the lower ends of the two third connecting rods 9;
the two first fixing blocks 6 correspond to the two fourth connecting rods 91 one by one and are arranged in the middle of the top end of the box body (1), and the lower ends of the fourth connecting rods 91 are hinged with the first fixing blocks 6;
the two first electric telescopic rods 5 are respectively connected to the upper parts of the positions between the vertical supporting rod 8 and the third connecting rod 9 on the same side of the second half groove body 382, the fixed ends of the first electric telescopic rods 5 are fixedly connected with the vertical supporting rod 8, and the telescopic ends of the first electric telescopic rods are fixedly connected with the third connecting rod 9;
the solar cell panel 10 is arranged at the top end of the box body 1 and close to one side, far away from the first half-groove body 381, of the second half-groove body 382, and the first electric telescopic rod 5 can extend and retract to enable the second rainwater collecting tank 38 to shield the solar cell panel 10 or enable the solar cell panel 10 to be exposed;
the rain and snow sensor is arranged on the side wall of the first half groove body or the second half groove body;
a solar controller electrically connected to the solar panel 10, wherein the power module includes a storage battery (the power module may include the storage battery and a power module of an existing weak current box, and power supply through the storage battery and power supply through the power module of the existing weak current box can be controlled by the controller);
the solar controller, the storage battery and the first electric telescopic rod 5 are respectively and electrically connected with the controller.
Preferably, the following structure is also employed: can set up first fixed block into the fifth slider, the box top set up and be on a parallel with the third spout of first spout, fifth slider sliding connection be in the third spout, the vertical setting of third connecting rod 9, both ends are half cell body fixed connection with fifth slider and second respectively about the third connecting rod 9, first electric telescopic handle's flexible end with third connecting rod fixed connection.
The working principle and the beneficial effects of the technical scheme are as follows: the rain and snow sensor is used for sensing rain and snow, when the rain and snow sensor senses rain and snow, the controller controls the first electric telescopic rod 5 to extend to drive the fourth sliding block to slide in the first sliding groove, so that the second rain collecting groove is extended, and the second rain collecting groove 38 shields the solar cell panel 10; meanwhile, the controller controls the solar controller to be closed;
when the rain and snow sensor does not sense rain and snow, the controller controls the first electric telescopic rod 5 to contract to drive the fourth sliding block to slide in the first sliding groove, so that the second rainwater collecting groove contracts, and the second rainwater collecting groove 38 exposes the solar cell panel 10; meanwhile, the controller controls the solar controller to be started, and solar energy is converted into electric energy to be charged for power storage. According to the technical scheme, the solar cell panel is arranged, the solar power supply has the advantage of energy conservation, and the telescopic second rainwater collecting tank is arranged to shield the solar cell panel, so that the solar cell panel is protected conveniently, and the service life of the weak electricity box is prolonged.
In one embodiment, as shown in fig. 4, the heat dissipation device 4 includes:
the sliding rail 41 is fixedly connected to the middle of the top end in the box body 1, and the sliding rail 41 is horizontally arranged;
the ventilation holes are formed in the top end of the box body 1 and are located on two sides of the sliding rail 41 (if the sliding rail is horizontally arranged in the left-right direction, the ventilation holes are located on the front side and the rear side of the sliding rail), and a filter screen is arranged in the box body 1 corresponding to the ventilation holes;
the two first sliding blocks 42 are both connected in the sliding rail 41 in a sliding manner (the first sliding blocks are loaded through the sliding rail, the first sliding blocks are positioned in the sliding rail, a vertical plate is arranged in the middle of the bottom end of each first sliding block, the size of each vertical plate is smaller than that of each sliding block, an opening is formed in the bottom end of the sliding rail and is used for the vertical plate to pass through, and the first sliding blocks are prevented from falling down);
the two first connecting rods 43 are respectively connected to the bottom ends of the two first sliding blocks 42;
the top end of the mounting plate 44 is fixedly connected with the two first connecting rods 43;
the second electric telescopic rod 45 is fixedly connected to the top end in the box body 1 through a fixing frame 46 and is positioned on one side of the sliding rail 41, the second electric telescopic rod 45 is parallel to the sliding rail 41, and the second electric telescopic rod 45 is fixedly connected with one first sliding block 42; preferably, the number of the second electric telescopic rods can also be two, and the two second electric telescopic rods are respectively and symmetrically arranged on two sides of the first sliding block;
the mounting plate comprises a first vertical rod 47 and a second vertical rod 48, wherein the first vertical rod 47 and the second vertical rod 48 are horizontally arranged at the lower end of the mounting plate 44 at intervals;
the rotating motor 49 is fixedly connected to the lower end of the mounting plate 44 and is positioned between the first vertical rod 47 and the second vertical rod 48, and an output shaft of the rotating motor 49 is arranged downwards vertically;
the threaded rod 415 is vertically arranged, and the lower end of the threaded rod 415 is fixedly connected with an output shaft of a rotating motor 49;
the two bearing blocks 416 are arranged on the first vertical rod 47 at intervals up and down, and two ends of the threaded rod 415 are respectively connected with the bearings on the two bearing blocks 416;
a second sliding chute 414 disposed on a side of the first vertical rod 47 close to the rotating motor 49;
the second slider 410 is provided with a vertical threaded hole, and the threaded hole is sleeved on the threaded rod 415 and is in threaded fit with the threaded rod 415;
one side of the third sliding block 411 is slidably connected in the second sliding groove 414, and the other side of the third sliding block 411 is fixedly connected with the second sliding block 410;
a second connecting rod 412, the upper end of which is fixedly connected with the third sliding block 411 or the second sliding block 410, and the lower end of the second connecting rod 412 is fixedly connected with a fan 413 (preferably, the size of the fan is smaller than the distance from the threaded rod to the first vertical rod, so that the fan can move between the threaded rod and the first vertical rod);
the fan 413, the rotating motor 49 and the second electric telescopic rod 45 are all electrically connected with the controller. The inner wall of the periphery of the box body 1 is provided with a plurality of temperature sensors, each temperature sensor is connected with the controller, and when the local temperature of the position of a certain temperature sensor is too high, the controller controls the second electric telescopic rod and the rotating motor to move, so that the fan is close to the temperature sensor with the too high temperature, the current of the fan is increased, and the heat dissipation is accelerated.
The working principle and the beneficial effects of the technical scheme are as follows: during heat dissipation, the controller controls the fan to rotate to dissipate heat inside the box body, the controller controls the second electric telescopic rod to stretch and retract, so that the first sliding block slides in the sliding rail (slides left and right or back and forth), the fan moves left and right (or moves front and back), the controller controls the rotating motor to rotate, the second sliding block moves up and down on the threaded rod, the fan moves up and down, the heat dissipation of the fan can be uniform, local overheating is avoided, and the service life of the weak current box is prolonged;
the structure can realize left-right movement (or front-back movement) and up-down movement of the fan by controlling the second electric telescopic rod and the rotating motor through the controller, and the control is convenient.
In one embodiment, as shown in fig. 5, the temperature sensor is connected to a controller through a first sensing circuit, and the controller controls the fan 413 to operate through a control circuit;
the first sensing circuit includes:
a second operational amplifier U2, the non-inverting input terminal of which is grounded;
one end of the fourth resistor R4 is connected with the output end of the second operational amplifier U2, the other end of the fourth resistor R4 is connected with the inverting input end of the second operational amplifier U2, and the temperature sensor is connected with the fourth resistor R4 in parallel;
one end of the fifth resistor R5 is connected with the inverting input end of the second operational amplifier U2, the other end of the fifth resistor R5 is connected with one end of a sixth resistor R6, and the other end of the sixth resistor R6 is connected with a power supply;
a seventeenth resistor R17 connected in parallel with the fifth resistor R5; the seventeenth resistor is a thermistor;
the positive electrode of the photoelectric isolator U5 is connected with the output end of the second operational amplifier U2, the negative electrode and the emitter of the photoelectric isolator U5 are grounded, and the collector of the photoelectric isolator U5 is grounded through a first capacitor C1 and a second resistor R2;
one end of the first resistor R1 is connected with the collector of the photoelectric isolator U5;
the inverting input end of the first operational amplifier U1 is connected with the other end of the first resistor R1, the non-inverting input end of the first operational amplifier U1 is grounded, and the output end of the first operational amplifier U1 is connected with the controller;
one end of the third resistor R3 is connected with the inverting input end of the first operational amplifier U1, and the other end of the third resistor R3 is connected with the output end of the first operational amplifier U1;
the controller is further connected with a voltage detection circuit (preferably, the voltage detection circuit may include a current transformer, the current transformer senses the current input to the fan, and the current transformer is connected in parallel with a resistor to obtain the working voltage of the fan), the voltage detection circuit is used for detecting the working voltage of the fan 413, and the weak current box further includes a first feedback circuit and a second feedback circuit;
a first feedback circuit comprising: the inverting input end of the third operational amplifier U3 is connected with the detection voltage output by the voltage detection circuit, and the non-inverting input end of the third operational amplifier U3 is connected with the first reference voltage V1; an eleventh resistor R11 having one end connected to the first reference voltage V1 and the other end grounded; a tenth resistor R10 having one end connected to the first reference voltage V1 and the other end connected to a power supply; an eighth resistor R8, one end of which is connected with the power supply and the other end of which is connected with the output end of the third operational amplifier U3; one end of the ninth resistor R9 is connected with the output end of the third operational amplifier U3, and the other end is grounded; one end of the seventh resistor R7 is connected with the controller, and the other end of the seventh resistor R7 is connected with the grounding end of the ninth resistor R9;
a second feedback circuit comprising: the inverting input end of the fourth operational amplifier U4 is connected with the detection voltage output by the voltage detection circuit, and the non-inverting input end of the fourth operational amplifier U4 is connected with the second reference voltage V2; a fifteenth resistor R15, having one end connected to the second reference voltage V2 and the other end grounded; a sixteenth resistor R16, having one end connected to the second reference voltage V2 and the other end connected to the power supply; a fourteenth resistor R14, one end of which is connected to the non-inverting input terminal of the fourth operational amplifier U4, and the other end of which is connected to the power supply; a thirteenth resistor R13, one end of which is connected with the power supply and the other end of which is connected with the output end of the fourth operational amplifier U4; one end of the twelfth resistor R12 is connected with the output end of the fourth operational amplifier U4, and the other end is grounded; and the thirty-eighth resistor R38 has one end connected to the controller and the other end connected to the ground of the twelfth resistor R12.
The working principle and the beneficial effects of the technical scheme are as follows: in the first sensing circuit, the seventeenth resistor is used as a temperature compensation unit of the first sensing circuit, so that the temperature measurement precision can be improved; the photoelectric isolator is arranged to protect the temperature sensor, so that the reverse interference of signals is avoided, and the temperature detection is accurate, so that the temperature in the box body can be conveniently monitored, the weak current box can be conveniently protected, and the service life of the weak current box is prolonged;
the first reference voltage is a starting voltage value of the fan, namely the third operational amplifier is used for detecting whether the fan is started or not. When the fan output level of the third operational amplifier is low (namely, the voltage value of the inverting input end is higher than the first reference voltage), the fact that the fan is started can be confirmed, and the fan is fed back to the controller, so that whether the fan fails or not can be detected conveniently. The second reference voltage is an overheat voltage reference value, i.e. the fourth operational amplifier is used for detecting whether the fan is overheated or not. When the fourth operational amplifier outputs a low level (namely, the voltage value of the inverting input end is higher than the second reference voltage), the overheating of the fan can be confirmed and fed back to the controller, and the controller controls the fan to stop working and protect the fan. The fan is protected conveniently, so that the normal work of the fan is guaranteed, and the service life of the weak current box is prolonged.
In one embodiment, an automatic fire extinguisher is installed in the box body, and the automatic fire extinguisher is electrically connected with the controller;
the smoke sensor is used for collecting smoke concentration information in the box body and transmitting the smoke concentration information to the controller, the controller stores weak-current box identity information, and the weak-current box identity information comprises: the number of the weak current box and the geographical position information of the weak current box;
the controller receives the smoke concentration information transmitted by the smoke sensor, judges whether the smoke concentration value in the box body is larger than a preset smoke concentration standard value or not according to the smoke concentration information, controls the automatic fire extinguisher to start to extinguish a fire if the smoke concentration value in the box body is larger than the preset smoke concentration standard value, controls the alarm to give an alarm, and simultaneously sends alarm information and weak battery identity information to the monitoring terminal;
the smoke sensor is provided with a second sensing circuit, as shown in fig. 6, the second sensing circuit comprising:
an emitter of the second transistor Q2 is grounded through a fifteenth resistor R35, a base of the second transistor Q2 is grounded through a fourteenth resistor R34 and is connected with a second power supply through a sixteenth resistor R36;
the inductor comprises a second crystal diode D2 and a third crystal diode D3, the negative electrode of the second crystal diode D2 is connected with the collector of a third crystal triode, the positive electrode of the second crystal diode D2 is connected with a second power supply through a thirteenth resistor R33, and the negative electrode of the third crystal diode D3 is grounded; the second crystal diode is an infrared diode, and the third crystal diode is a photosensitive diode; when the box body is on fire, infrared light generates diffuse reflection and refraction on the surface of smoke and enters the photosensitive diode;
a seventh operational amplifier U8, in which the non-inverting input terminal is connected to the positive electrode of the third transistor diode D3 through a ninth capacitor C9 and to ground through a thirty-first resistor R31, and the inverting input terminal is connected to ground through a tenth capacitor C10;
a thirty-third resistor R30, one end of which is connected with the inverting input end of the seventh operational amplifier U8, and the other end of which is connected with the output end of the seventh operational amplifier U8;
a non-inverting input terminal of the sixth operational amplifier U7 is connected to the output terminal of the seventh operational amplifier U8 through a twenty-ninth resistor R29 and is grounded through a twenty-eighth resistor R28, and an inverting input terminal of the sixth operational amplifier U7 is grounded through a twenty-seventh resistor R27;
one end of the fifth capacitor C5 is connected with the inverting input end of the sixth operational amplifier U7, and the other end of the fifth capacitor C5 is connected with the output end of the sixth operational amplifier U7;
a thirty-seventh resistor R37, the first end of which is connected with the output end of the sixth operational amplifier U7, and the second end of which is grounded through a sixth capacitor C6;
the controller comprises: automatic fire extinguishing and alarm control circuit, automatic fire extinguishing and alarm control circuit includes:
a non-inverting input terminal of the fifth operational amplifier U6 is connected with the second terminal of the thirty-seventh resistor R37;
the first switch is connected with a first end of a first power supply through a voltage stabilizing circuit;
a twenty-third resistor R23, a first end of the twenty-third resistor R23 being connected to the first end of the first switch and to the inverting input of the fifth operational amplifier U6, a second end of the twenty-third resistor R23 being connected to ground;
a twenty-second resistor R22, one end of which is connected with the non-inverting input end of the fifth operational amplifier U6, and the other end of which is connected with the first end of the first switch;
a positive electrode of the fourth crystal diode D4 is connected with the first end of the first switch, a negative electrode of the fourth crystal diode D4 is connected with the first end of the twenty-first resistor R21, and the second end of the twenty-first resistor R21 is connected with the output end of the fifth operational amplifier U6;
a base of the first transistor is connected with the output end of the fifth operational amplifier U6 through a twentieth resistor R20, and a collector of the first transistor is grounded;
a negative electrode of the fifth crystal diode D5 is connected with the first end of the first switch, and a positive electrode of the fifth crystal diode D5 is connected with an emitting electrode of the transistor; the D5 is a light emitting diode.
One end of the relay is connected with the first end of the first switch, and the other end of the relay is connected with the emitting electrode of the transistor;
the relay controls the second switch to be switched on and switched off, two pins at one end of the second switch are connected with the automatic fire extinguisher, two pins at the other end of the second switch are respectively connected with the first end of the first switch and one end of a nineteenth resistor R19, and the other end of the nineteenth resistor R19 is grounded;
one end of the alarm is connected with the first end of the first switch, and the other end of the alarm is connected with the second end of the first power supply through an eighteenth resistor R18;
the voltage stabilizing circuit comprises:
a first crystal diode D1, the anode of which is connected with the first end of the first power supply;
the input end of the integrated chip is connected with the negative electrode of the first crystal diode D1, the voltage regulating pin of the integrated chip is grounded through a third capacitor C3, and the output end of the integrated chip is connected with the second switch;
one end of the second capacitor C2 is connected with the input end of the integrated chip, and the other end of the second capacitor C2 is grounded;
a cathode of the voltage comparator U9 is connected with an output end of the integrated chip through a twenty-four resistor R24, a cathode of the voltage comparator U9 is also connected with a feedback pin of the integrated chip, and an anode of the voltage comparator U9 is grounded;
a twenty-fifth resistor R25, a first end of which is connected with the output of the integrated chip, a second end of which is connected with a first end of a twenty-sixth resistor R26 and a feedback pin of a voltage comparator U9, and a second end of the twenty-sixth resistor R26 is grounded;
one end of a fourth capacitor C4 is connected with the output of the integrated chip, and the other end of the fourth capacitor C4 is connected with the second end of the twenty-sixth resistor R26;
and one end of the eighth capacitor C8 is connected with the output of the integrated chip, and the other end of the eighth capacitor C8 is connected with the second end of the twenty-sixth resistor R26. The integrated chip is a voltage stabilizing chip.
The working principle and the beneficial effects of the technical scheme are as follows: an automatic fire extinguisher is arranged in the box body and is electrically connected with the controller; smoke transducer is used for gathering the internal smog concentration information of box and gives the controller with it, the controller storage has weak electric box identity information, weak electric box identity information includes: the number of the weak current box and the geographical position information of the weak current box; the controller receives the smoke concentration information transmitted by the smoke sensor, judges whether the smoke concentration value in the box body is larger than a preset smoke concentration standard value or not according to the smoke concentration information, controls the automatic fire extinguisher to start to extinguish fire if the smoke concentration value in the box body is larger than the preset smoke concentration standard value, controls the alarm to give an alarm, and simultaneously sends alarm information and weak battery identity information to the monitoring terminal. Above-mentioned technical scheme realizes automatic fire extinguishing, avoids because the untimely calamity that brings of putting out a fire, and reports to the police and reminds the weak current case position and serial number that the administrator catches fire, is convenient for accelerate the processing progress.
The second sensing circuit senses smoke signals by adopting the infrared diode and the photosensitive diode, processes the signals and then performs two-stage amplification processing, and has the advantage of reliable detection.
The voltage stabilizing circuit is provided with the integrated chip and the C8 for voltage stabilizing and filtering, so that the reliability of the voltage stabilizing circuit is improved, and the automatic fire extinguisher can work reliably;
the automatic fire extinguishing and alarming control circuit realizes automatic driving, quickly controls the automatic fire extinguisher to work and the alarm to give an alarm, realizes starting feedback by the light emitting of the fourth crystal diode, and works reliably.
The protection of the weak current box is more convenient, and the service life of the weak current box can be prolonged.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (7)

1. The utility model provides an outdoor weak current case based on thing networking is used, includes box (1) and locates chamber door (2) on box (1), its characterized in that still includes:
the buffering rain shielding device (3) is arranged at the top end of the box body (1);
the box body (1) is internally provided with: the environment detection device comprises a power supply module, a heat dissipation device (4), a controller and an internal environment detection device of the box body (1), wherein the heat dissipation device (4), the internal environment detection device of the box body (1) and the power supply module are respectively and electrically connected with the controller;
an alarm is arranged outside the box body (1) and is electrically connected with the controller;
the controller is also connected with the monitoring terminal through the Internet of things;
the buffer rain shield (3) comprises:
a second rainwater collection tank (38);
the buffer plates (39) are horizontally arranged in the second rainwater collecting tanks (38) at intervals;
the upper ends of the first connecting springs (310) are fixedly connected with the lower end of the buffer plate (39), and the lower ends of the first connecting springs (310) are fixedly connected with the bottom of the second rainwater collecting tank (38);
a drain pipe (36) is arranged on the side wall of the bottom of the second rainwater collecting tank (38);
the second rainwater collection tank (38) comprising: the first half groove body (381) and the second half groove body (382), two first sliding grooves (383) which are parallel to each other are arranged on the outer wall of the bottom end of the first half groove body (381), two fourth sliding blocks (384) are arranged on the inner wall of the bottom end of the second half groove body (382), and the two fourth sliding blocks (384) are respectively connected in the two first sliding grooves (383) in a sliding mode;
the light current case still includes:
the two vertical supporting rods (8) are arranged on the first half groove body (381), the two vertical supporting rods (8) are respectively positioned on one side, away from the side wall of the second half groove body (382), of the two first sliding grooves (383), and the upper end of each vertical supporting rod (8) is fixedly connected with the lower end of the first half groove body (381);
the two second fixed blocks (7) are arranged at the top end of the box body (1), the two second fixed blocks (7) and the two vertical supporting rods (8) are arranged in a one-to-one correspondence mode, and the lower ends of the vertical supporting rods (8) are fixedly connected with the upper ends of the second fixed blocks (7);
the upper ends of the two third connecting rods (9) are respectively arranged at two sides of the second rainwater collecting tank (38) along the direction parallel to the first sliding groove (383), and the upper end of each third connecting rod (9) is hinged with the side face of the second half tank body (382);
the upper ends of the two fourth connecting rods (91) are respectively hinged with the lower ends of the two third connecting rods (9);
the two first fixing blocks (6) correspond to the two fourth connecting rods (91) one by one and are arranged in the middle of the top end of the box body (1), and the lower ends of the fourth connecting rods (91) are hinged to the first fixing blocks (6);
the two first electric telescopic rods (5) are respectively connected to the upper part between the vertical supporting rod (8) and the third connecting rod (9) on the same side of the second half groove body (382), the fixed ends of the first electric telescopic rods (5) are fixedly connected with the vertical supporting rod (8), and the telescopic ends are fixedly connected with the third connecting rod (9);
the solar cell panel (10) is arranged at the top end of the box body (1) and is close to one side, far away from the first half groove body (381), of the second half groove body (382), and the first electric telescopic rod (5) can stretch out and draw back to enable the second rainwater collecting tank (38) to shield the solar cell panel (10) or enable the solar cell panel (10) to be exposed;
the rain and snow sensor is arranged on the side wall of the first half groove body (381) or the second half groove body (382);
the solar controller is electrically connected with the solar panel (10), and the power supply module comprises a storage battery;
the solar controller, the storage battery, the first electric telescopic rod (5) and the rain and snow sensor are electrically connected with the controller respectively.
2. The outdoor weak power box used based on the Internet of things is characterized in that the box body (1) internal environment detection device comprises:
temperature sensor, humidity sensor, smoke sensor;
the temperature sensor, the humidity sensor and the smoke sensor are respectively and electrically connected with the controller.
3. The outdoor weak-current box used based on the internet of things as claimed in claim 1, wherein the buffering rain shielding device (3) comprises:
a first rainwater collection tank (35);
the baffle plate (31), the baffle plate (31) is fixedly connected in the first rainwater collecting tank (35);
the hollow cylinders (32) are arranged at the lower end of the first rainwater collecting tank (35) at intervals and are vertically arranged, and the lower ends of the hollow cylinders (32) are open;
the second connecting springs (37) are sleeved on the outer walls of the hollow cylinders (32) in a one-to-one correspondence mode, one ends of the second connecting springs (37) are fixedly connected with the bottom end of the first rainwater collecting tank (35), and the other ends of the second connecting springs (37) are fixedly connected with the top end of the box body (1);
the vertical fixing rods (33) are fixed at the top end of the box body (1) in a one-to-one correspondence manner with the hollow cylinders (32), and the vertical fixing rods (33) extend into the hollow cylinders (32);
the side wall of the baffle plate (31) is provided with a rainwater guide groove (34) communicated to the interior of the first rainwater collecting groove (35).
4. The outdoor weak power box used based on the Internet of things is characterized in that a groove (311) is formed in the top end of the baffle plate (31), one end, away from the first rainwater collecting tank, of the rainwater guide groove (34) is communicated with the groove (311), and a drain pipe (36) is arranged on the first rainwater collecting tank.
5. The outdoor weak power box used based on the internet of things as claimed in claim 2, wherein the heat dissipation device (4) comprises:
the sliding rail (41) is fixedly connected to the middle of the inner top end of the box body (1), and the sliding rail (41) is horizontally arranged;
the ventilation holes are formed in the top end of the box body (1) and located on two sides of the sliding rail (41), and a filter screen is arranged in the box body (1) corresponding to the ventilation holes;
two first sliding blocks (42), wherein the two first sliding blocks (42) are both connected in the sliding rail (41) in a sliding manner;
the two first connecting rods (43), the two first connecting rods (43) are respectively connected to the bottom ends of the two first sliding blocks (42);
the top end of the mounting plate (44) is fixedly connected with two first connecting rods (43);
the second electric telescopic rod (45) is fixedly connected to the inner top end of the box body (1) through a fixing frame (46) and is positioned on one side of the sliding rail (41), the second electric telescopic rod (45) is parallel to the sliding rail (41), and the second electric telescopic rod (45) is fixedly connected with one first sliding block (42);
the mounting plate comprises a first vertical rod (47) and a second vertical rod (48), wherein the first vertical rod (47) and the second vertical rod (48) are horizontally arranged at the lower end of the mounting plate (44) at intervals;
the rotating motor (49) is fixedly connected to the lower end of the mounting plate (44) and is positioned between the first vertical rod (47) and the second vertical rod (48), and an output shaft of the rotating motor (49) is arranged vertically downwards;
the threaded rod (415) is vertically arranged, and the lower end of the threaded rod (415) is fixedly connected with an output shaft of a rotating motor (49);
the two bearing seats (416) are arranged on the first vertical rod (47) at intervals up and down, and two ends of the threaded rod (415) are respectively connected with the bearings on the two bearing seats (416);
the second sliding chute (414) is arranged on one side, close to the rotating motor (49), of the first vertical rod (47);
the second sliding block (410) is provided with a vertical threaded hole, and the threaded hole is sleeved on the threaded rod (415) and is in threaded fit with the threaded rod (415);
one side of the third sliding block (411) is connected in the second sliding groove (414) in a sliding mode, and the other side of the third sliding block (411) is fixedly connected with the second sliding block (410);
the upper end of the second connecting rod (412) is fixedly connected with the third sliding block (411) or the second sliding block (410), and the lower end of the second connecting rod (412) is fixedly connected with a fan (413);
the fan (413), the rotating motor (49) and the second electric telescopic rod (45) are all electrically connected with the controller.
6. The outdoor weak power box used based on the internet of things as claimed in claim 2, wherein the temperature sensor is connected with a controller through a first sensing circuit, and the controller controls a fan (413) to operate through a control circuit;
the first sensing circuit includes:
a second operational amplifier (U2) having a non-inverting input terminal connected to ground;
a fourth resistor (R4), one end of which is connected with the output end of the second operational amplifier (U2), the other end of which is connected with the inverting input end of the second operational amplifier (U2), and the temperature sensor is connected with the fourth resistor (R4) in parallel;
a fifth resistor (R5), one end of which is connected with the inverting input end of the second operational amplifier (U2), the other end of which is connected with one end of a sixth resistor (R6), and the other end of the sixth resistor (R6) is connected with a power supply;
a seventeenth resistor (R17) connected in parallel with the fifth resistor (R5);
the positive electrode of the photoelectric isolator (U5) is connected with the output end of the second operational amplifier (U2), the negative electrode and the emitter of the photoelectric isolator are grounded, and the collector of the photoelectric isolator is grounded through a first capacitor (C1) and a second resistor (R2);
a first resistor (R1) having one end connected to the collector of the opto-isolator (U5);
the inverting input end of the first operational amplifier (U1) is connected with the other end of the first resistor (R1), the non-inverting input end of the first operational amplifier is grounded, and the output end of the first operational amplifier is connected with the controller;
a third resistor (R3), one end of which is connected with the inverting input end of the first operational amplifier (U1), and the other end of which is connected with the output end of the first operational amplifier (U1);
the controller is also connected with a voltage detection circuit, the voltage detection circuit is used for detecting the voltage of the fan (413) during working, and the weak current box further comprises a first feedback circuit and a second feedback circuit;
a first feedback circuit comprising: a third operational amplifier (U3), the inverting input end of which is connected with the detection voltage output by the voltage detection circuit, and the non-inverting input end of which is connected with the first reference voltage (V1); an eleventh resistor (R11) having one end connected to the first reference voltage (V1) and the other end grounded; a tenth resistor (R10) having one end connected to the first reference voltage (V1) and the other end connected to the power supply; an eighth resistor (R8) having one end connected to the power supply and the other end connected to the output end of the third operational amplifier (U3); a ninth resistor (R9), one end of which is connected with the output end of the third operational amplifier (U3), and the other end of which is grounded; a seventh resistor (R7), one end of which is connected with the controller and the other end of which is connected with the grounding end of the ninth resistor (R9);
a second feedback circuit comprising: a fourth operational amplifier (U4), the inverting input terminal of which is connected to the detection voltage outputted by the voltage detection circuit, and the non-inverting input terminal of which is connected to the second reference voltage (V2); a fifteenth resistor (R15) having one end connected to the second reference voltage (V2) and the other end grounded; a sixteenth resistor (R16) having one end connected to the second reference voltage (V2) and the other end connected to the power supply; a fourteenth resistor (R14), one end of which is connected with the non-inverting input end of the fourth operational amplifier (U4), and the other end of which is connected with the power supply; a thirteenth resistor (R13), one end of which is connected with the power supply and the other end of which is connected with the output end of the fourth operational amplifier (U4); a twelfth resistor (R12), one end of which is connected with the output end of the fourth operational amplifier (U4), and the other end of which is grounded; and a thirty-eighth resistor (R38) having one end connected to the controller and the other end connected to the ground of the twelfth resistor (R12).
7. The outdoor weak power box used based on the Internet of things as claimed in claim 2,
an automatic fire extinguisher is installed in the box body (1) and is electrically connected with the controller;
the smoke sensor is used for collecting smoke concentration information in the box body and transmitting the smoke concentration information to the controller, the controller stores weak-current box identity information, and the weak-current box identity information comprises: the number of the weak current box and the geographical position information of the weak current box;
the controller receives the smoke concentration information transmitted by the smoke sensor, judges whether the smoke concentration value in the box body is larger than a preset smoke concentration standard value or not according to the smoke concentration information, controls the automatic fire extinguisher to start to extinguish a fire if the smoke concentration value in the box body is larger than the preset smoke concentration standard value, controls the alarm to give an alarm, and simultaneously sends alarm information and weak battery identity information to the monitoring terminal;
the smoke sensor is provided with a second sensing circuit, the second sensing circuit includes:
a second transistor (Q2), the emitter of which is grounded through a thirty-fifth resistor (R35), the base of which is grounded through a thirty-fourth resistor (R34) and connected with a second power supply through a thirty-sixth resistor (R36);
the inductor comprises a second crystal diode (D2) and a third crystal diode (D3), the cathode of the second crystal diode (D2) is connected with the collector of a third crystal triode, the anode of the second crystal diode (D2) is connected with a second power supply through a thirteenth resistor (R33), and the cathode of the third crystal diode (D3) is grounded;
a seventh operational amplifier (U8), wherein the non-inverting input terminal is connected with the anode of the third transistor diode (D3) through a ninth capacitor (C9) and is grounded through a thirty-first resistor (R31), and the inverting input terminal is grounded through a tenth capacitor (C10);
a thirtieth resistor (R30), one end of which is connected with the inverting input end of the seventh operational amplifier (U8), and the other end of which is connected with the output end of the seventh operational amplifier (U8);
a sixth operational amplifier (U7), wherein the non-inverting input terminal of the sixth operational amplifier (U7) is connected with the output terminal of the seventh operational amplifier (U8) through a twenty-ninth resistor (R29) and is grounded through a twenty-eighteen resistor (R28), and the inverting input terminal of the sixth operational amplifier (U7) is grounded through a twenty-seventh resistor (R27);
a fifth capacitor (C5), one end of which is connected with the inverting input end of the sixth operational amplifier (U7), and the other end of which is connected with the output end of the sixth operational amplifier (U7);
a thirty-seventh resistor (R37), the first end of which is connected with the output end of the sixth operational amplifier (U7), and the second end of which is grounded through a sixth capacitor (C6);
the controller comprises: automatic fire extinguishing and alarm control circuit, automatic fire extinguishing and alarm control circuit includes:
a fifth operational amplifier (U6), the non-inverting input terminal of which is connected with the second terminal of the thirty-seventh resistor (R37);
the first switch (J1) is connected with a first end of the first power supply through a voltage stabilizing circuit;
a twenty-third resistor (R23), a first end of the twenty-third resistor (R23) being connected with a first end of the first switch (J1) and with an inverting input end of the fifth operational amplifier (U6), a second end of the twenty-third resistor (R23) being grounded;
a twenty-second resistor (R22) having one end connected to the non-inverting input terminal of the fifth operational amplifier (U6) and the other end connected to the first end of the first switch (J1);
a fourth crystal diode (D4), the anode of which is connected with the first end of the first switch (J1), the cathode of which is connected with the first end of a twenty-first resistor (R21), and the second end of the twenty-first resistor (R21) is connected with the output end of a fifth operational amplifier (U6);
the base of the first transistor (Q1) is connected with the output end of the fifth operational amplifier (U6) through a twentieth resistor (R20), and the collector of the first transistor is grounded;
a fifth crystal diode (D5), the negative pole of which is connected with the first end of the first switch (J1), and the positive pole of which is connected with the emitter of the transistor;
one end of the relay (J3) is connected with the first end of the first switch (J1), and the other end of the relay is connected with the emitter of the transistor;
the second switch (J2) is controlled to be switched on and switched off by the relay (J3), two pins at one end of the second switch (J2) are connected with the automatic fire extinguisher, two pins at the other end of the second switch (J2) are respectively connected with the first end of the first switch (J1) and one end of a nineteenth resistor (R19), and the other end of the nineteenth resistor (R19) is grounded;
one end of the alarm is connected with the first end of a first switch (J1), and the other end of the alarm is connected with the second end of the first power supply through an eighteenth resistor (R18);
the voltage stabilizing circuit comprises:
a first crystal diode (D1) having an anode connected to the first power supply first terminal;
the input end of the integrated chip is connected with the cathode of the first crystal diode (D1), the adjusting voltage pin of the integrated chip is grounded through a third capacitor (C3), and the output end of the integrated chip is connected with the second switch (J1);
one end of the second capacitor (C2) is connected with the input end of the integrated chip, and the other end of the second capacitor is grounded;
the cathode of the voltage comparator (U9) is connected with the output end of the integrated chip through a twenty-four resistor (R24), the cathode of the voltage comparator (U9) is also connected with a feedback pin of the integrated chip, and the anode of the voltage comparator (U9) is grounded;
a twenty-fifth resistor (R25), wherein the first end of the twenty-fifth resistor is connected with the output of the integrated chip, the second end of the twenty-fifth resistor is connected with the first end of a twenty-sixth resistor (R26) and the feedback pin of a voltage comparator (U9), and the second end of the twenty-sixth resistor (R26) is grounded;
one end of the fourth capacitor (C4) is connected with the output of the integrated chip, and the other end of the fourth capacitor (C4) is connected with the second end of the twenty-sixth resistor (R26);
and one end of the eighth capacitor (C8) is connected with the output of the integrated chip, and the other end of the eighth capacitor (C8) is connected with the second end of the twenty-sixth resistor (R26).
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