CN211149627U

CN211149627U - Protection alarm system for preventing personnel from randomly entering dangerous area during operation of car dumper

Info

Publication number: CN211149627U
Application number: CN201921864250.4U
Authority: CN
Inventors: 张志浩
Original assignee: Datang Binzhou Power Generation Co ltd
Current assignee: Datang Binzhou Power Generation Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-31
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a prevent personnel at will and get into dangerous area's protection alarm system during tipper operation belongs to safety protection technical field. The utility model discloses a power module turns into 220V alternating current direct current and supplies power for control module, infrared monitoring module, drive module and alarm module, whether the detection of infrared monitoring module has personnel to pass through, if someone passes through, infrared monitoring module gives control module with signal transmission, control module's singlechip is to drive module output signal, input alarm module after drive module with signal amplification, alarm module switches on, the speaker sends out the alarm sound, the warning light sends ruddiness, the suggestion gets into the staff and pays attention to danger; the utility model discloses the setting can send out the warning when personnel miss in the tipper operation region, has reduced the potential safety hazard that leads to by personnel's mistake income.

Description

Protection alarm system for preventing personnel from randomly entering dangerous area during operation of car dumper

Technical Field

The utility model relates to a safety protection technical field, more specifically say, prevent that personnel from getting into danger area's protection alarm system at will during tipper operation.

Background

Thermal power generation is a generic term for a system in which heat energy generated by burning fuel such as petroleum, coal, and natural gas is used to heat water, so that the water is changed into high-temperature and high-pressure steam, and the steam drives a generator to generate electricity. Power plants fueled by coal, oil or natural gas are collectively referred to as thermal power plants. In China, thermal power generation generally uses coal as fuel to carry out thermal power generation.

The thermal power plant needs to transport the fire coal by train line, so the coming coal needs to be dumped when arriving at the plant. At present, a tippler is generally adopted on site to unload the fire coal. The tippler system is a very specialized bulk material unloading system, and is used for unloading bulk materials loaded by trains. The coal unloading system of the tippler has high unloading efficiency and little damage to vehicles, can improve the working environment of operators on duty and is convenient for realizing the automatic control of machinery. The tippler belongs to the main equipment, has a large amount of rotating equipment and hydraulic equipment, and is fast during the operation, and gravity is big, in case there is irrelevant personnel or the personnel who does not know the equipment to get into, probably takes place the life injury very much. Therefore, a system capable of reminding people not to enter the tippler equipment area needs to be designed to ensure the safety of the people.

According to the retrieval, Chinese patent number Z L201310001957.3, the application date is 2013, 1, 4 and the name of the invention is an infrared monitoring and alarming device, the infrared monitoring and alarming device comprises an infrared monitoring module, a monitoring switch module, a level processing module and an audible and visual alarming module, infrared rays radiated by a human body in a monitored area are monitored, and when a person enters the monitored area to move and the monitoring switch module is in a conducting state, the audible and visual alarming module can give out audible and visual prompts to realize an alarming function.

Disclosure of Invention

1. Technical problem to be solved by the utility model

When using the tipper to unload the coal to thermal power station, irrelevant personnel mistake is gone into the problem that easily causes the potential safety hazard, the utility model provides a prevent that personnel from getting into danger area's protection alarm system at will during tipper operation adopts the infrared grating to detect whether someone mistake is gone into to set up alarm module and remind the mistake to go into personnel, reduced the safety problem that personnel's mistake was gone into and is leaded to.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

a protection alarm system for preventing personnel from entering a dangerous area randomly during the operation of a tippler comprises a power supply module, a control module, an infrared monitoring module, a driving module and an alarm module; the power supply module is respectively connected with the control module, the infrared monitoring module and the driving module and supplies power to each module; the control module is respectively connected with the infrared monitoring module and the driving module, receives signals transmitted by the infrared monitoring module and controls the driving module to give an alarm through the alarm module.

Furthermore, one end of a step-down transformer TR1 of the power module is connected with a 220V alternating current power supply, the other end of the step-down transformer TR1 of the power module is connected with a bridge rectifier circuit BR1, and the output end of the bridge rectifier circuit BR1 is connected with the V1 end of a voltage stabilizing chip U5 and one end of a filter capacitor C4; the VO end of the voltage stabilizing chip U5 is connected with one end of the filter capacitor C5; the bridge rectifier circuit BR1, the GND end of the voltage stabilization chip U5 and the other ends of the filter capacitors C4 and C5 are all grounded.

Furthermore, the control module is connected with a VO end of a voltage stabilizing chip U5 of the power supply module, the power supply is divided into two branches after being connected, one branch is connected with one end of a resistor R2 through a switch, the other end of the resistor R2 is divided into two branches to be connected with a single chip microcomputer RST and EA pins, the other branch is connected with a filter capacitor C3 and then is connected with one end of a resistor R1 and the other end of a resistor R2 respectively, the other end of the resistor R1 is grounded, a pin XTA L1 of the single chip microcomputer is connected with the capacitor C1 and then is grounded, a pin XTA L2 of the single chip microcomputer is connected with the capacitor C2 and then is grounded, a crystal oscillator X1 is connected between the two capacitors in parallel, a pin P2.0 of the single chip microcomputer is connected with the.

Furthermore, the anode of a light emitting diode D5 at the infrared emission end of the infrared monitoring module is connected with the power supply module through a resistor R3, and the cathode is grounded; the anode of a receiving diode D1 at the infrared receiving end is respectively connected with the output end of the power supply module, one end of a resistor R7 and the emitter of a triode Q2, one path of the cathode is connected to the base of the triode Q1 through the resistor R8, and the other path is grounded through a resistor R9; the base electrode of the triode Q2 is connected with the resistor R6, and the resistors R6 and R7 are both connected to the collector electrode of the triode Q1; the collector of the triode Q2 is connected with the anode of the diode D9, one path of the cathode of the diode D9 is connected to the P2.0 pin of the control module singlechip, and the other path is grounded through the resistor R5; the emitter of the transistor Q1 is grounded.

Furthermore, the base electrode of the triode Q3 of the driving module is respectively connected with the anode of the diode D6, the resistor R10 and the resistor R11, and the other end of the resistor R10 is connected with a P2.1 pin of the singlechip of the control module; the negative electrode of the diode D6 is connected with the collector of the triode Q3, the resistor R4 and the alarm module; the other end of the resistor R4 is connected with the power supply module; the emitting electrode of the triode Q3 is divided into two paths, one path is connected with the resistor R11, and the other path is grounded.

Furthermore, one end of a resistor R12 of the alarm module is connected with the driving module, the other end of the resistor R12 is connected with the anode of a diode D7, the cathode of the diode D7 is connected with a loudspeaker L S1, and a loudspeaker L S1 is connected with the resistor R13 and then grounded.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) in view of the problem that irrelevant personnel are likely to enter an operation area by mistake and potential safety hazards are caused when the existing thermal power station uses the tippler to unload coal, the utility model utilizes the infrared monitoring module to detect whether personnel enter by mistake; when detecting that someone passes through the infrared monitoring module, the control module controls the alarm module to send out warning reminding, so that irrelevant personnel are prevented from entering an operation area, and potential safety hazards are reduced.

(2) Because the area of transmission receiving terminal is less among the infrared monitoring module, easily takes place the bending under the effect of gravity, causes transmission receiving terminal and reflection end not on a straight line, leads to the infrared signal that the transmitting terminal can not be received to the receiving terminal, the utility model discloses a singlechip is to its control, and the infrared signal that the real-time supervision transmitting terminal sent has avoided the problem of the signal of not receiving.

(3) Because infrared detection easily receives external disturbance, easily produces the misinformation in rainy day, the utility model discloses adopt infrared grating in infrared monitoring module, its jam-proof ability is strong, is difficult for producing the misinformation, makes the system operation more accurate.

Drawings

Fig. 1 is a schematic circuit block diagram of the alarm system of the present invention;

FIG. 2 is a circuit diagram of the alarm system of the present invention;

FIG. 3 is a circuit diagram of a power module of the alarm system of the present invention;

FIG. 4 is a circuit diagram of a control module of the alarm system of the present invention;

FIG. 5 is a circuit diagram of an infrared monitoring module of the alarm system of the present invention;

fig. 6 is a circuit diagram of a driving module of the alarm system of the present invention;

fig. 7 is a circuit diagram of the alarm module of the alarm system of the present invention.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Weighing device, for short truck scale, is gone into to thermal power plant's car, and this truck scale both ends have a car stop respectively, have a pair of infrared detecting element respectively at the both ends that car stop slightly inwards, and one is infrared emission end, and another is infrared receiving terminal, and when infrared light of infrared emission end sent infrared receiving terminal, the system thinks that the vehicle has gone up the balance completely this moment. The infrared monitoring system is modified and applied to the operation area of the tippler under the initiation, and whether a person enters the tippler by mistake or not is detected and an alarm is given. Reference will now be made to specific embodiments.

Example 1

With reference to fig. 1 and 2, the protection and alarm system for preventing personnel from entering a dangerous area randomly during operation of the car dumper in the embodiment includes a power module, a control module, an infrared monitoring module, a driving module and an alarm module; the power supply module is respectively connected with the control module, the infrared monitoring module and the driving module and supplies power to each module; the control module is respectively connected with the infrared monitoring module and the driving module, receives signals transmitted by the infrared monitoring module and controls the driving module to give an alarm through the alarm module.

With reference to fig. 3, one end of a step-down transformer TR1 of the power module of the present embodiment is connected to a 220V ac power supply, and the other end is connected to a bridge rectifier circuit BR1, and an output end of the bridge rectifier circuit BR1 is connected to a V1 end of a voltage regulator chip U5 and one end of a filter capacitor C4; the VO terminal of the voltage stabilizing chip U5 is connected to one terminal of the filter capacitor C5. The bridge rectifier circuit BR1, the GND end of the voltage stabilization chip U5 and the other ends of the filter capacitors C4 and C5 are all grounded. The 220V alternating current is firstly reduced by the step-down transformer TR1, then is converted into direct current by the bridge rectifier circuit BR1, and finally is output by the voltage stabilizing chip to supply power to other modules, so that the system is stable in power supply and is not easy to break down.

Referring to fig. 4, the control module of this embodiment is connected to a VO end of a voltage stabilizing chip U5 of a power module, a power supply is divided into two branches after being connected, one branch is connected to one end of a resistor R2 through a switch, the other end of the resistor R2 is divided into two branches to be connected to a single chip RST and an EA pin, the other branch is connected to a filter capacitor C3, and then is connected to one end of a resistor R1 and the other end of a resistor R2 respectively, the other end of the resistor R1 is grounded, an XTA L1 pin of the single chip is connected to a capacitor C1 and then is grounded, an XTA L2 pin is connected to a capacitor C2 and then is grounded, a crystal oscillator X1. is connected between the two capacitors, a P2.0 pin of the single chip is connected to an infrared monitoring module, and a P2.1 pin is connected to a driving module.

Referring to fig. 5, the light emitting diode D5 at the infrared emitting end of the infrared monitoring module has an anode connected to the power module via a resistor R3 and a cathode grounded. The anode of a receiving diode D1 at the infrared receiving end is respectively connected with the output end of the power supply module, one end of a resistor R7 and the emitter of a triode Q2, one path of the cathode is connected to the base of the triode Q1 through the resistor R8, and the other path is grounded through a resistor R9. The base of the triode Q2 is connected with the resistor R6, and the resistors R6 and R7 are connected to the collector of the triode Q1. The collector of the triode Q2 is connected with the anode of the diode D9, one path of the cathode of the diode D9 is connected to the P2.0 pin of the control module singlechip, and the other path is grounded through the resistor R5. The emitter of the transistor Q1 is grounded. The triodes Q1 and Q2 form an amplifying circuit, and amplify signals received by the infrared receiving end and send the signals into the control module through a P2.0 pin of the singlechip. The control module and the infrared monitoring module are operated, and the light emitting diode D9 is lightened.

Because infrared detection device exists and easily receives external interference, easily produces the problem of wrong report in rainy day, this embodiment adopts the infrared grating in infrared monitoring module, and its jam-proof ability is strong, is difficult for producing the false report, makes the operation of system more accurate. The adopted infrared grating model is SM-G1020N1 CBA.

Referring to fig. 6, the base of the transistor Q3 of the driving module is connected to the anode of the diode D6, the resistors R10 and R11, respectively, and the other end of the resistor R10 is connected to the P2.1 pin of the control module single chip microcomputer. And the cathode of the diode D6 is connected with the collector of the triode Q3, the resistor R4 and the alarm module. The other end of the resistor R4 is connected with the power supply module. The emitting electrode of the triode Q3 is divided into two paths, one path is connected with the resistor R11, and the other path is grounded. Because the signal sent by the singlechip is too small to directly drive the alarm module, the signal sent by the singlechip is amplified and then input into the alarm system by forming an amplifying circuit through the triode Q3. Where R4 is a pull-up resistor.

Referring to fig. 7, one end of a resistor R12 of the alarm module is connected with the driving module, the other end of the resistor R12 is connected with the anode of a diode D7, the cathode of the diode D7 is connected with a speaker L S1, and a speaker L S1 is connected with a resistor R13 and then grounded.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a prevent that personnel from getting into danger area's protection alarm system at will during tippler operation which characterized in that: the infrared monitoring system comprises a power supply module, a control module, an infrared monitoring module, a driving module and an alarm module; the power supply module is respectively connected with the control module, the infrared monitoring module and the driving module and supplies power to each module; the control module is respectively connected with the infrared monitoring module and the driving module, receives signals transmitted by the infrared monitoring module and controls the driving module to give an alarm through the alarm module.

2. The protection alarm system for preventing personnel from randomly entering dangerous areas during the operation of the car dumper as claimed in claim 1, characterized in that: one end of a step-down transformer TR1 of the power supply module is connected with a 220V alternating current power supply, the other end of the step-down transformer TR1 of the power supply module is connected with a bridge rectifier circuit BR1, and the output end of the bridge rectifier circuit BR1 is connected with the V1 end of a voltage stabilizing chip U5 and one end of a filter capacitor C4; the VO end of the voltage stabilizing chip U5 is connected with one end of the filter capacitor C5; the bridge rectifier circuit BR1, the GND end of the voltage stabilization chip U5 and the other ends of the filter capacitors C4 and C5 are all grounded.

3. The protection alarm system for preventing personnel from randomly entering a dangerous area during the operation of the car dumper as claimed in claim 1 or 2, characterized in that the control module is connected with a VO end of a voltage stabilizing chip U5 of the power module, the power supply is divided into two branches after being connected, one branch is connected with one end of a resistor R2 through a switch, the other end of the resistor R2 is divided into two branches to be connected with a RST pin and an EA pin of the single-chip microcomputer, the other branch is connected with a filter capacitor C3 and then is respectively connected with one end of the resistor R1 and the other end of the resistor R2, the other end of the resistor R1 is grounded, an XTA L1 pin of the single-chip microcomputer is connected with the capacitor C1 and then is grounded, an XTA L2 pin of the single-chip microcomputer is connected with the capacitor C2 and then is connected with a crystal oscillator X1 in parallel, a P2.0 pin of the single-chip microcomputer is.

4. The protection alarm system for preventing personnel from randomly entering dangerous areas during the operation of the car dumper as claimed in claim 3, characterized in that: the anode of a light emitting diode D5 at the infrared emission end of the infrared monitoring module is connected with the power supply module through a resistor R3, and the cathode of the light emitting diode D5 is grounded; the anode of a receiving diode D1 at the infrared receiving end is respectively connected with the output end of the power supply module, one end of a resistor R7 and the emitter of a triode Q2, one path of the cathode is connected to the base of the triode Q1 through the resistor R8, and the other path is grounded through a resistor R9; the base electrode of the triode Q2 is connected with the resistor R6, and the resistors R6 and R7 are both connected to the collector electrode of the triode Q1; the collector of the triode Q2 is connected with the anode of the diode D9, one path of the cathode of the diode D9 is connected to the P2.0 pin of the control module singlechip, and the other path is grounded through the resistor R5; the emitter of the transistor Q1 is grounded.

5. The protection alarm system for preventing personnel from randomly entering dangerous areas during the operation of the car dumper as claimed in claim 4, characterized in that: the base electrode of a triode Q3 of the driving module is respectively connected with the anode of a diode D6, a resistor R10 and a resistor R11, and the other end of the resistor R10 is connected with a P2.1 pin of the singlechip of the control module; the negative electrode of the diode D6 is connected with the collector of the triode Q3, the resistor R4 and the alarm module; the other end of the resistor R4 is connected with the power supply module; the emitting electrode of the triode Q3 is divided into two paths, one path is connected with the resistor R11, and the other path is grounded.

6. The protection alarm system for preventing personnel from entering dangerous areas randomly during the operation of the car dumper as claimed in claim 5, wherein one end of a resistor R12 of the alarm module is connected with the driving module, the other end of the resistor R12 is connected with the anode of a diode D7, the cathode of a diode D7 is connected with a loudspeaker L S1, and a loudspeaker L S1 is connected with the resistor R13 and then grounded.