CN108519747B - Power supply management device for dormitories of primary and middle schools - Google Patents
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Abstract
The utility model provides a middle and primary school dormitory power supply management device which characterized in that: all dormitories are used as a power supply unit according to floors, grades or a single dormitory, all power supply units are connected in parallel, each power supply unit is connected with a power supply management device, and the power supply management device realizes regular power supply and outage management of the dormitories through the accurate combination of buttons, contactors and relays. The invention can further realize the automatic operation of each button by arranging the main control unit. The invention can also realize the safe electricity utilization of the dormitory by detecting the over-current, the low voltage and the dormitory smoke concentration.
Description
Technical Field
The invention belongs to the technical field of power supply monitoring and management, and particularly relates to a power supply monitoring and management system for a dormitory of primary and secondary schools.
Background
At present, the compulsory education of primary and secondary schools is continuously developed, the hardware conditions including classrooms, dormitories and sports facilities are continuously improved, and a good guarantee is provided for the study life and the physical training of the students. The rhythm of the current social life is accelerated, the division of labor of the society is more detailed, and more parents can send the children to the lodging school in the middle school and even the primary school.
Smart phones, IPADs, and computers have become daily electronic products for people, and the phones are more the main tools for parents to learn about the study and life of students in connection with students in schools. Even IPAD and computer become necessary tools for the development of the learning of primary and secondary school students in areas with better economic conditions. Meanwhile, most of the students in middle and primary schools are juveniles, the self-management capability is not strong, and the students still indulge in the electronic games at the specified rest time, so that the learning and the body health of the students are influenced. In addition, in the middle school stage, some students are used to learn late, and rest of other students in the dormitory can be influenced.
Obviously, a reasonable and effective dormitory power management scheme is very necessary for solving the problems of bedtime and good work and rest habits of primary and secondary schools. However, the power supply of each dormitory of middle and primary schools at present basically adopts two schemes, one of which is that all dormitory power supplies are turned off at regular time, namely, all lighting and socket power supplies of all dormitories are turned off after the set time is reached. However, the scheme does not consider the specific situations of different grades or different dormitories, and considers the situation that the electricity is required to be used for time-out due to collective activities in certain grades, classes or dormitories. In addition, the power supplies are uniformly turned off and then are painted black, so that inconvenience is brought to students who do not have access to wash over time, and even potential safety hazards are caused. The other solution is that all dormitories are powered off without time limit, and the students' self-management and the supervision of the management personnel are relied on, but as mentioned above, the self-management ability of minors is weak, and the supervision of the management personnel is not practical, so that the management is difficult to realize in terms of manpower and material resources.
Disclosure of Invention
The invention discloses a power supply management device for dormitories of primary and secondary schools, aiming at solving the problems of flexible, convenient, safe and effective power supply management of dormitories of primary and secondary schools. The invention can select manual operation control or automatic control, change the power transmission and power failure time according to the actual condition, and realize short-time power transmission according to the actual condition.
The invention specifically adopts the following technical scheme:
a power supply management device for dormitories of primary and secondary schools is characterized in that all dormitories serve as a power supply unit according to floors, grades or a single dormitory, all the power supply units are connected in parallel, and each power supply unit is connected with the power supply management device; the method is characterized in that:
in the power supply unit portion, an alternating current power supply is connected to the lighting power consumption and the socket power consumption through a power supply air switch QF2, respectively;
the output end of the power supply air switch QF2 is connected to an electric power supply for illumination through a pair of normally open contacts of a first contactor KM1, namely a first normally open contact KM1-1, and a pair of normally open contacts of a second contactor KM2, namely a first normally open contact KM2-1 of the second contactor KM2 is connected in parallel with a first normally open contact KM1-1 of a first contactor KM 1;
the output end of the power supply air switch QF2 is connected to a socket power supply through the other pair of normally open contacts of the first contactor KM1, namely a second normally open contact KM 1-2;
the alternating current power supply of each power supply unit section is also connected to the power supply management device through the control device air switch QF1 and the fuse RF;
the power supply management device is provided with a group of power supply control buttons corresponding to each power supply unit part, wherein the power supply control buttons comprise a power supply button SB1, a power failure button SB2 and a short-time power supply button SB 3;
the power transmission button SB1, a first normally closed contact KA1-1 of a first relay KA1 and a first contactor KM1 are connected between a live wire and a zero line of an alternating-current power supply in series, and a third normally closed contact KA1-3 of the first relay KA1 and a fourth normally open contact KM1-4 of a first contactor KM1 are connected in series and then connected to two ends of a first normally closed contact KA1-1 of the first relay KA1 in parallel;
the power failure button SB2 and the first relay KA1 are connected in series between a live wire and a zero wire of an alternating current power supply;
the short-time power transmission button SB3 and the time relay KT are connected in series between the live wire and the zero wire of the alternating current power supply;
a second normally closed contact KA1-2 of the first relay KA1, a delay disconnection contact KT-1 of the time relay KT and a second contactor KM2 are connected in series between a live wire and a zero wire of an alternating current power supply;
the third normally open contact KM1-3 of the first contactor KM1 and the normal power supply indicator lamp HL1 are connected in series between the live wire and the zero wire of the alternating current power supply;
the second normally open contact KM2-2 and the short-time power supply indicator lamp HL2 of the second contactor are connected in series between the live wire and the neutral wire of the alternating current power supply.
The invention further comprises the following preferred embodiments:
the sensor unit is arranged on an alternating current power line of each power supply unit and comprises a current sensor, a voltage sensor and a smoke sensor, and sensing signals of the sensor unit can be transmitted to the dormitory power supply management device through a control line or a wireless transmitting module.
The dormitory power supply management device further comprises a main control unit, a timing module, an action output module, a signal receiving unit and a wireless receiving module; the sensor sensing signal can be directly transmitted to the signal receiving unit through a control line, and can also be optionally transmitted to the signal receiving unit through the wireless receiving module; the signal receiving unit uploads a sensing signal of the sensor to the main control unit, and the timing module is connected with the main control unit; the main control unit can be connected with the power supply air switch QF2 and each group of corresponding power supply control buttons through the action output module;
when the sensing signal of any sensor exceeds a preset threshold value, the main control unit trips off the corresponding power supply air switch QF2 through the action output module;
the dormitory power transmission and power failure time is set through the timing module, and when the corresponding power transmission time and power failure time are reached, the main control unit sends out the action commands corresponding to the power transmission button SB1 and the power failure button SB2 through the action output module.
When accommodation students corresponding to the power supply units have collective activities and need to change power transmission and outage time and need to transmit power at a short time at a certain moment, the accommodation management personnel need to apply for the accommodation management personnel, and the accommodation management personnel manually operate corresponding power transmission buttons SB1, power outage buttons SB2 and short-time power transmission buttons SB 3;
the students in the lodging can also send a time change request form with the teacher's signature to the active unit through mobile terminals such as mobile phones, and the master control unit automatically changes the power transmission and outage time of the corresponding power supply unit after receiving the request form.
The time relay KT is an electronic time relay, and the time delay disconnection time of the time delay disconnection contact KT-1 is 5-10 minutes.
The invention has the following beneficial technical effects:
the invention divides all dormitories into reasonable power supply units, can conveniently and effectively realize the management of power supply and power failure time of different power supply units, and can realize the classification management of lighting power supplies and socket power supplies. And short-time power supply of the lighting power supply can be realized to deal with emergencies.
Overcurrent, low voltage and smog signal through sensor unit monitoring power to through the linkage of sensor and main control unit, realized the safe power consumption of dormitory, guarantee student's personal safety.
The invention can be realized manually or automatically through the main control unit, and is convenient to select an adoption means mode or an automatic mode according to the economic conditions of the local school.
Drawings
Fig. 1 is a schematic diagram of a power supply management device for a primary school dormitory according to the principle of the invention.
Detailed Description
For better understanding of the technical solutions of the present invention, the technical solutions of the present invention are further described in detail by specific embodiments in the following description and the accompanying drawings.
As shown in fig. 1, the power supply management device for dormitories of primary and secondary schools disclosed by the present invention can be manually operated, or can be further upgraded to an automatic operation mode.
The power supply management device for the dormitories of the primary and secondary schools can take all dormitories as a power supply unit according to floors, grades or a single dormitory, all the power supply units are connected in parallel, and each power supply unit is connected with the power supply management device; an operation button and a control part are provided on the power supply management device.
In each power supply unit part, an alternating current power supply is respectively connected to lighting power utilization and socket power utilization through the sensor unit and the power supply air switch QF2 in sequence; the output end of the power supply air switch QF2 is respectively connected to an electric power supply for illumination and a socket power supply of a dormitory through two pairs of normally open contacts KM1-1 and KM1-2 of a first contactor KM 1. A pair of normally open contacts KM2-1 of the second contactor KM2 is connected in parallel with the normally open contact KM 1-1.
The sensor unit at least comprises a current sensor, a voltage sensor and a smoke sensor, wherein the current sensor is connected in series in the power supply loop, and the power supply sensor is connected in parallel with the power supply loop. The smoke sensor is arranged on the wall of the dormitory and is connected with the power supply end of the smoke sensor through a rectification voltage reduction circuit connected with a current power supply. Each sensor can directly transmit a sensing signal to the signal receiving unit through the control line and upload the sensing signal to the main control unit, and can also transmit the sensing signal to the wireless receiving module on the side of the power supply management device through the arranged wireless transmitting module and upload the sensing signal to the main control unit through the signal receiving unit.
In this application, the current sensor threshold may be set to 5A, 8A, 12A, etc., the low voltage threshold is set to 207V, and the smoke sensor threshold is set to 9.5% FT. When any sensor exceeds a set threshold value, the main control unit trips the power supply air switch QF2 through the action output module, and power supply is recovered after the fault is eliminated.
The ac power source of each power supply unit section is connected to the power supply management device through the control device air switch QF1 and the fuse RF.
The power supply management device is provided with a group of power supply control buttons corresponding to each power supply unit part, wherein the power supply control buttons comprise a power supply button SB1, a power failure button SB2 and a short-time power supply button SB 3.
The power transmission button SB1, a first normally closed contact KA1-1 of a first relay KA1 and a first contactor KM1 are connected between a live wire and a zero line of an alternating-current power supply in series, and a third normally closed contact KA1-3 of the first relay KA1 and a fourth normally open contact KM1-4 of a first contactor KM1 are connected in series and then connected to two ends of a first normally closed contact KA1-1 of the first relay KA1 in parallel;
the power failure button SB2 and the first relay KA1 are connected in series between a live wire and a zero wire of an alternating current power supply;
the short-time power transmission button SB3 and the time relay KT are connected in series between the live wire and the zero wire of the alternating current power supply;
a second normally closed contact KA1-2 of the first relay KA1, a delay disconnection contact KT-1 of the time relay KT and a second contactor KM2 are connected in series between a live wire and a zero wire of an alternating current power supply;
the third normally open contact KM1-3 of the first contactor KM1 and the normal power supply indicator lamp HL1 are connected in series between the live wire and the zero wire of the alternating current power supply;
the second normally open contact KM2-2 and the short-time power supply indicator lamp HL2 of the second contactor are connected in series between the live wire and the neutral wire of the alternating current power supply.
When the power transmission button SB1 is actuated, the first contactor KM1 is powered on, two groups of normally open contacts KM1-1 and KM1-2 are closed, and both the lighting and the socket in the dormitory are powered on.
When the specified power failure time is reached, the power failure button SB2 is actuated, and the first contactor KM1 and the second contactor KM2 are both powered off, so that the pair of normally open contacts KM2-1 of the normally open contacts KM1-1, KM1-2 and the second contactor KM2 are both opened, and the lighting of the dormitory and the socket are both powered off.
When the students in a dormitory attend a collective event or come back later, the short-time power transmission button SB3 can be operated to realize short-time power transmission. In the application, the time relay KT adopts an electronic time relay, the delayed off time of the delayed off contact KT-1 is set to be 5-10 minutes, namely, the power supply is turned off after 5-10 minutes of short-time power transmission, and only short-time power transmission is carried out on illumination power.
The present invention can also operate the above-described power control buttons, i.e., the power transmission button SB1, the power failure button SB2, and the short-time power transmission button SB3, in an automatic manner.
The dormitory power supply management device is required to be additionally provided with a main control unit, a timing module, an action output module, a signal receiving unit and a wireless receiving module; the sensor sensing signal can be directly transmitted to the signal receiving unit through a control line, and can also be optionally transmitted to the signal receiving unit through the wireless receiving module; the signal receiving unit uploads a sensing signal of the sensor to the main control unit, and the timing module is connected with the main control unit; the main control unit can be connected with the power supply air switch QF2 and each group of corresponding power supply control buttons through the action output module;
when the sensing signal of any sensor exceeds a preset threshold value, the main control unit trips off the corresponding power supply air switch QF2 through the action output module;
the dormitory power transmission and power failure time is set through the timing module, and when the corresponding power transmission time and power failure time are reached, the main control unit sends out the action commands corresponding to the power transmission button SB1 and the power failure button SB2 through the action output module.
When accommodation students corresponding to the power supply units have collective activities and need to change power transmission and outage time and need to transmit power at a short time at a certain moment, the accommodation management personnel need to apply for the accommodation management personnel, and the accommodation management personnel manually operate corresponding power transmission buttons SB1, power outage buttons SB2 and short-time power transmission buttons SB 3;
the students in the lodging can also send a time change request form with the teacher's signature to the active unit through mobile terminals such as mobile phones, and the master control unit automatically changes the power transmission and outage time of the corresponding power supply unit after receiving the request form.
While the best mode for carrying out the invention has been described in detail and illustrated in the accompanying drawings, it is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the invention should be determined by the appended claims and any changes or modifications which fall within the true spirit and scope of the invention should be construed as broadly described herein.
Claims (3)
1. A power supply management device for dormitories of primary and secondary schools is characterized in that all dormitories serve as a power supply unit according to floors, grades or a single dormitory, all the power supply units are connected in parallel, and each power supply unit is connected with the power supply management device; the method is characterized in that:
in the power supply unit portion, an alternating current power supply is connected to the lighting power consumption and the socket power consumption through a power supply air switch QF2, respectively;
the output end of the power supply air switch QF2 is connected to an electric power supply for illumination through a pair of normally open contacts of a first contactor KM1, namely a first normally open contact KM1-1, and a pair of normally open contacts of a second contactor KM2, namely a first normally open contact KM2-1 of the second contactor KM2 is connected in parallel with a first normally open contact KM1-1 of a first contactor KM 1;
the output end of the power supply air switch QF2 is connected to a socket power supply through the other pair of normally open contacts of the first contactor KM1, namely a second normally open contact KM 1-2;
the alternating current power supply of each power supply unit section is also connected to the power supply management device through the control device air switch QF1 and the fuse RF;
the power supply management device is provided with a group of power supply control buttons corresponding to each power supply unit part, wherein the power supply control buttons comprise a power supply button SB1, a power failure button SB2 and a short-time power supply button SB 3;
the power transmission button SB1, a first normally closed contact KA1-1 of a first relay KA1 and a first contactor KM1 are connected between a live wire and a zero line of an alternating-current power supply in series, and a third normally closed contact KA1-3 of the first relay KA1 and a fourth normally open contact KM1-4 of a first contactor KM1 are connected in series and then connected to two ends of a first normally closed contact KA1-1 of the first relay KA1 in parallel;
the power failure button SB2 and the first relay KA1 are connected in series between a live wire and a zero wire of an alternating current power supply;
the short-time power transmission button SB3 and the time relay KT are connected in series between the live wire and the zero wire of the alternating current power supply;
a second normally closed contact KA1-2 of the first relay KA1, a delay disconnection contact KT-1 of the time relay KT and a second contactor KM2 are connected in series between a live wire and a zero wire of an alternating current power supply;
the third normally open contact KM1-3 of the first contactor KM1 and the normal power supply indicator lamp HL1 are connected in series between the live wire and the zero wire of the alternating current power supply;
a second normally open contact KM2-2 and a short-time power supply indicator lamp HL2 of the second contactor are connected between the live wire and the zero wire of the alternating current power supply in series;
the dormitory power supply management device further comprises a main control unit, a timing module, an action output module, a signal receiving unit and a wireless receiving module; the sensor sensing signal can be directly transmitted to the signal receiving unit through a control circuit and also can be transmitted to the signal receiving unit through the wireless receiving module; the signal receiving unit uploads a sensing signal of the sensor to the main control unit, and the timing module is connected with the main control unit; the main control unit can be connected with the power supply air switch QF2 and each group of corresponding power supply control buttons through the action output module;
when the sensing signal of any sensor exceeds a preset threshold value, the main control unit trips off the corresponding power supply air switch QF2 through the action output module;
the power transmission and power failure time of the dormitory is set through the timing module, and when the corresponding power transmission time and power failure time are reached, the main control unit sends out action instructions corresponding to the power transmission button SB1 and the power failure button SB2 through the action output module;
when accommodation students corresponding to the power supply units have collective activities and need to change power transmission and outage time and need to transmit power at a short time at a certain moment, the accommodation management personnel need to apply for the accommodation management personnel, and the accommodation management personnel manually operate corresponding power transmission buttons SB1, power outage buttons SB2 and short-time power transmission buttons SB 3;
the accommodation students send time change request forms with teacher's signatures to the active units through the mobile terminals, and the master control unit automatically changes the power transmission and outage time of the corresponding power supply units after receiving the request forms.
2. The dormitory power supply management device for primary and secondary schools according to claim 1, wherein:
the sensor unit is arranged on an alternating current power line of each power supply unit and comprises a current sensor, a voltage sensor and a smoke sensor, and sensing signals of the sensor unit can be transmitted to the dormitory power supply management device through a control line or a wireless transmitting module.
3. The dormitory power supply management device for primary and secondary schools according to claim 1 or 2, wherein:
the time relay KT is an electronic time relay, and the time delay disconnection time of the time delay disconnection contact KT-1 is 5-10 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810173600.6A CN108519747B (en) | 2018-03-02 | 2018-03-02 | Power supply management device for dormitories of primary and middle schools |
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| CN201810173600.6A CN108519747B (en) | 2018-03-02 | 2018-03-02 | Power supply management device for dormitories of primary and middle schools |
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| CN108519747A CN108519747A (en) | 2018-09-11 |
| CN108519747B true CN108519747B (en) | 2021-12-17 |
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| CN112245841B (en) * | 2020-09-09 | 2021-08-03 | 中建四局第五建筑工程有限公司 | Fireproof system and method for construction temporary building |
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