CN213758223U

CN213758223U - Nuclear magnetic resonance protective door control circuit

Info

Publication number: CN213758223U
Application number: CN202021796306.XU
Authority: CN
Inventors: 于树杨; 曹帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-07-23
Anticipated expiration: 2030-08-25

Abstract

The utility model relates to the field of medical equipment, especially, relate to a nuclear magnetic resonance guard gate control circuit. The technical problem to be solved is as follows: provided is a nuclear magnetic resonance protective door control circuit capable of preventing a protective door from being opened abnormally. A nuclear magnetic resonance protective door control circuit comprises a storage battery power supply unit, a power switch, a first Hall sensor, a second Hall sensor, a third Hall sensor and the like; the first Hall sensor, the second Hall sensor and the third Hall sensor are all connected with the power switch. The utility model discloses a first hall sensor, second hall sensor and third hall sensor can detect whether the guard gate is closed to show through first pilot lamp group, second pilot lamp group and third pilot lamp group, make the understanding guard gate that people can understand whether close, prevent that the guard gate from opening unusually.

Description

Nuclear magnetic resonance protective door control circuit

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a nuclear magnetic resonance guard gate control circuit.

Background

The nuclear magnetic resonance imaging technology is a physical phenomenon, can be applied to the medical field, has a good diagnosis function on solid organs such as a brain, a liver, a kidney, a spleen and the like, has multiple nuclear magnetic resonance imaging parameters and high scanning speed, is one of the current mainstream examination means, and can generate electromagnetic radiation during the operation of nuclear magnetic resonance, so that people can set a protective door, sometimes, people can neglect carelessly, the protective door is not closed well, and the protective door is opened abnormally.

A nuclear magnetic resonance protective door control circuit capable of preventing a protective door from being opened abnormally is designed to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that people may be careless and careless, the protective door is not closed well, and the protective door is opened abnormally, the technical problem to be solved is as follows: provided is a nuclear magnetic resonance protective door control circuit capable of preventing a protective door from being opened abnormally.

A nuclear magnetic resonance protective door control circuit comprises a storage battery power supply unit, a power switch, a first Hall sensor, a second Hall sensor, a third Hall sensor, a first detection circuit, a second detection circuit, a third detection circuit, a first indicator lamp set, a second indicator lamp set and a third indicator lamp set, wherein the first Hall sensor, the second Hall sensor and the third Hall sensor are all connected with the power switch, the first Hall sensor is connected with the input end of the first detection circuit, the output end of the first detection circuit is connected with the first indicator lamp set, the second Hall sensor is connected with the input end of the second detection circuit, the output end of the second detection circuit is connected with the second indicator lamp set, the third Hall sensor is connected with the input end of the third detection circuit, and the output end of the third detection circuit is connected with the third indicator lamp set, the storage battery power supply unit supplies power for the power switch, the first Hall sensor, the second Hall sensor, the third Hall sensor, the first detection circuit, the second detection circuit, the third detection circuit, the first indicator lamp set, the second indicator lamp set and the third indicator lamp set.

In addition, particularly preferably, the storage battery power supply device further comprises an or gate circuit and an MCU, the output ends of the first detection circuit, the second detection circuit and the third detection circuit are all connected with the input end of the or gate circuit, the output end of the or gate circuit is connected with the MCU, and the storage battery power supply unit supplies power to the or gate circuit and the MCU.

In addition, it is particularly preferred that the first detection circuit includes a battery BT1, a switch S1, a hall sensor-U1, a resistor R1, a resistor R4, and light emitting diodes VD1-VD2, the battery BT1 is connected in series with the switch S1, the resistor R4, the light emitting diodes VD1, and the light emitting diodes VD2, the cathode of the light emitting diodes VD2 is grounded, the other end of the battery BT1 is grounded, the 2 pin of the hall sensor-U1 is connected to a node between the light emitting diodes VD1 and the light emitting diodes VD2, the 1 pin of the hall sensor-U1 is connected to a node between the switch S1 and the resistor R4, the 2 pin of the hall sensor-U1 is connected to the resistor R1, the other end of the resistor R1 is connected to a node between the switch S1 and the resistor R4, and the 3 pin of the hall sensor-U1 is grounded.

In addition, it is particularly preferable that the second detection circuit includes a hall sensor-U2, a resistor R2, a resistor R6, and a light emitting diode VD3-VD4, the resistor R6 is connected in series with the light emitting diode VD3 and the light emitting diode VD4, the cathode of the light emitting diode VD4 is grounded, the other end of the resistor R6 is connected with the switch S1, the 2 pin of the hall sensor-U2 is connected with the node between the light emitting diode VD3 and the light emitting diode VD4, the 1 pin of the hall sensor-U2 is connected with the switch S1, the 2 pin of the hall sensor-U2 is connected with the resistor R2, the other end of the resistor R2 is connected with the switch S1, and the 3 pin of the hall sensor-U2 is grounded.

In addition, it is particularly preferable that the third detection circuit includes a hall sensor-U3, a resistor R3, a resistor R8, and a light emitting diode VD5-VD6, the resistor R8 is connected in series with the light emitting diode VD5 and the light emitting diode VD6, the cathode of the light emitting diode VD6 is grounded, the other end of the resistor R8 is connected with the switch S1, the 2 pin of the hall sensor-U3 is connected with the node between the light emitting diode VD5 and the light emitting diode VD6, the 1 pin of the hall sensor-U3 is connected with the switch S1, the 2 pin of the hall sensor-U3 is connected with the resistor R3, the other end of the resistor R3 is connected with the switch S1, and the 3 pin of the hall sensor-U3 is grounded.

Further, it is particularly preferable that the or gate circuit includes a photo-coupler 4N25-1, a photo-coupler 4N25-2, a photo-coupler 4N25-3, a resistor R5, a resistor R7, a resistor R9, a resistor R10, and diodes D1-D3, a 2-pin series resistor R7 of the hall sensor-U1 and a cathode of the photo-coupler 4N25-1, an anode of the photo-coupler 4N25-1 is coupled with +5V, a collector of the photo-coupler 4N25-1 is coupled with +5V, an emitter of the photo-coupler 4N25-1 is coupled with a diode D1, a cathode of the diode D1 is coupled with a resistor R5, the other end of the resistor R5 is grounded, a 2-pin series resistor R9 of the hall sensor-U2 and a cathode of the photo-coupler 4N25-2, an anode of the photo-coupler 4N25-2 is coupled with +5V, the collector of the photoelectric coupler 4N25-2 is connected with +5V, the emitter of the photoelectric coupler 4N25-2 is connected with a diode D2, the cathode of the diode D2 is connected with a resistor R5, a 2-pin series resistor R10 of a Hall sensor-U3 and the cathode of the photoelectric coupler 4N25-3, the anode of the photoelectric coupler 4N25-3 is connected with +5V, the collector of the photoelectric coupler 4N25-3 is connected with +5V, the emitter of the photoelectric coupler 4N25-3 is connected with a diode D3, and the cathode of the diode D3 is connected with a resistor R5.

The beneficial effects are that:

1. whether can detect the guard gate through first hall sensor, second hall sensor and third hall sensor and close to show through first pilot lamp group, second pilot lamp group and third pilot lamp group, make the understanding that people can understand whether the guard gate is closed, prevent that the guard gate from opening unusually.

2. Through MCU's effect, when having the outsider mistake to open the guard gate, can control nuclear magnetic resonance stop work, prevent that nuclear magnetic resonance from causing the harm to people's skin.

Drawings

Fig. 1 is a circuit block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

In the above drawings: 1_ storage battery power supply unit, 2_ power switch, 3_ first Hall sensor, 4_ second Hall sensor, 5_ third Hall sensor, 6_ first detection circuit, 7_ second detection circuit, 8_ third detection circuit, 9_ first indicator lamp group, 10_ second indicator lamp group, 11_ third indicator lamp group, 12_ OR gate circuit and 13_ MCU.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

A nuclear magnetic resonance protective door control circuit is shown in figure 1 and comprises a storage battery power supply unit 1, a power switch 2, a first Hall sensor 3, a second Hall sensor 4, a third Hall sensor 5, a first detection circuit 6, a second detection circuit 7, a third detection circuit 8, a first indicator lamp group 9, a second indicator lamp group 10 and a third indicator lamp group 11, wherein the first Hall sensor 3, the second Hall sensor 4 and the third Hall sensor 5 are all connected with the power switch 2, the first Hall sensor 3 is connected with the input end of the first detection circuit 6, the output end of the first detection circuit 6 is connected with the first indicator lamp group 9, the second Hall sensor 4 is connected with the input end of the second detection circuit 7, the output end of the second detection circuit 7 is connected with the second indicator lamp group 10, the third Hall sensor 5 is connected with the input end of the third detection circuit 8, the output end of the third detection circuit 8 is connected with the third indicator lamp set 11, and the storage battery power supply unit 1 supplies power to the power switch 2, the first hall sensor 3, the second hall sensor 4, the third hall sensor 5, the first detection circuit 6, the second detection circuit 7, the third detection circuit 8, the first indicator lamp set 9, the second indicator lamp set 10 and the third indicator lamp set 11.

When people press the power switch 2, the first Hall sensor 3, the second Hall sensor 4 and the third Hall sensor 5 start to work, when the first Hall sensor 3, the second Hall sensor 4 and the third Hall sensor 5 sense that the protective door is closed, the first detection circuit 6 controls the green light on the first indicator light group 9 to light up, the second detection circuit 7 controls the green light on the second indicator light group 10 to light up, the third detection circuit 8 controls the green light on the third indicator light group 11 to light up, which indicates that the protective door is completely closed, if any one of the first hall sensor 3, the second hall sensor 4 and the third hall sensor 5 does not sense that the guard door is closed, then the green light on the pilot lamp group that this hall sensor corresponds goes out, and the red light on the pilot lamp group lights, reminds people's guard gate not to close completely, prevents that the guard gate from opening unusually.

Example 2

On the basis of the embodiment 1, as shown in fig. 1, the battery power supply device further includes an or gate circuit 12 and an MCU13, output ends of the first detection circuit 6, the second detection circuit 7 and the third detection circuit 8 are all connected to an input end of the or gate circuit 12, an output end of the or gate circuit 12 is connected to an MCU13, and the battery power supply unit 1 supplies power to the or gate circuit 12 and the MCU 13.

First hall sensor 3, when second hall sensor 4 and third hall sensor 5 all sensed the guard gate and closed, first detection circuit 6, second detection circuit 7 and third detection circuit 8 are with signal input or in gate circuit 12, or in gate circuit 12 was with signal input MCU13, MCU13 control nuclear magnetic resonance work, if first hall sensor 3, arbitrary one hall sensor in second hall sensor 4 and the third hall sensor 5 did not sense the guard gate and close, MCU13 control nuclear magnetic resonance stop work, prevent that the mistake of other people from going into and leading to nuclear magnetic resonance to cause the harm to people's skin.

Example 3

A nuclear magnetic resonance protection door control circuit is shown in FIG. 2, the first detection circuit 6 comprises a storage battery BT1, a switch S1, a Hall sensor-U1, a resistor R1, a resistor R4 and light-emitting diodes VD1-VD2, the storage battery BT1 is connected with the switch S1, the resistor R4, the light-emitting diodes VD1 and the light-emitting diodes VD2 in series, the cathode of the light-emitting diodes VD2 is grounded, the other end of the storage battery BT1 is grounded, the pin 2 of the Hall sensor-U1 is connected with a node between the light-emitting diodes VD1 and the light-emitting diodes VD2, the pin 1 of the Hall sensor-U1 is connected with a node between the switch S1 and the resistor R4, the pin 2 of the Hall sensor-U1 is connected with the resistor R1, the other end of the resistor R1 is connected with a node between the switch S1 and the resistor R4, and the pin 3 of the Hall sensor-U1 is grounded.

The second detection circuit 7 comprises a hall sensor-U2, a resistor R2, a resistor R6 and a light emitting diode VD3-VD4, the resistor R6 is connected with the light emitting diode VD3 and the light emitting diode VD4 in series, the cathode of the light emitting diode VD4 is grounded, the other end of the resistor R6 is connected with a switch S1, the 2 pin of the hall sensor-U2 is connected with a node between the light emitting diode VD3 and the light emitting diode VD4, the 1 pin of the hall sensor-U2 is connected with a switch S1, the 2 pin of the hall sensor-U2 is connected with the resistor R2, the other end of the resistor R2 is connected with a switch S1, and the 3 pin of the hall sensor-U2 is grounded.

The third detection circuit 8 comprises a hall sensor-U3, a resistor R3, a resistor R8 and a light emitting diode VD5-VD6, the resistor R8 is connected with the light emitting diode VD5 and the light emitting diode VD6 in series, the cathode of the light emitting diode VD6 is grounded, the other end of the resistor R8 is connected with a switch S1, the 2 pin of the hall sensor-U3 is connected with a node between the light emitting diode VD5 and the light emitting diode VD6, the 1 pin of the hall sensor-U3 is connected with a switch S1, the 2 pin of the hall sensor-U3 is connected with the resistor R3, the other end of the resistor R3 is connected with a switch S1, and the 3 pin of the hall sensor-U3 is grounded.

The OR gate circuit 12 comprises a photoelectric coupler 4N25-1, a photoelectric coupler 4N25-2, a photoelectric coupler 4N25-3, a resistor R5, a resistor R7, a resistor R9, a resistor R10, diodes D1-D3, a 2-pin series resistor R7 of a Hall sensor-U1 and the cathode of the photoelectric coupler 4N25-1, the anode of the photoelectric coupler 4N25-1 is connected with +5V, the collector of the photoelectric coupler 4N25-1 is connected with +5V, the emitter of the photoelectric coupler 4N25-1 is connected with a diode D1, the cathode of the diode D1 is connected with the resistor R5, the other end of the resistor R5 is grounded, a 2-pin series resistor R9 of the Hall sensor-U2 and the cathode of the photoelectric coupler 4N25-2, the anode of the photoelectric coupler 4N25-2 is connected with +5V, the collector of the photoelectric coupler 4N 25-V + 25 is connected with the collector of the photoelectric coupler 4N 6382, the emitter of the photoelectric coupler 4N25-2 is connected with a diode D2, the cathode of the diode D2 is connected with a resistor R5, the 2-pin series resistor R10 of the Hall sensor-U3 is connected with the cathode of the photoelectric coupler 4N25-3, the anode of the photoelectric coupler 4N25-3 is connected with +5V, the collector of the photoelectric coupler 4N25-3 is connected with +5V, the emitter of the photoelectric coupler 4N25-3 is connected with a diode D3, and the cathode of the diode D3 is connected with the resistor R5.

When people press a switch S1, a Hall sensor-U1, a Hall sensor-U2 and a Hall sensor-U3 start to work, the Hall sensor-U1, the Hall sensor-U2 and the Hall sensor-U3 sense that a protective door is closed, 2 pins of the Hall sensor-U1, the Hall sensor-U2 and the Hall sensor-U3 all output low levels, a light emitting diode VD1, a light emitting diode VD3 and a light emitting diode VD5 are lighted, the light emitting diode VD2, the light emitting diode VD4 and the light emitting diode VD6 are not lighted, the low levels are input into a photoelectric coupler 4N25-1, a photoelectric coupler 4N25-2 and a photoelectric coupler 4N25-3, the photoelectric coupler 4N25-1, the photoelectric coupler 4N25-2 and an emitter of the photoelectric coupler 4N25-3 all output low levels, and the MCU13 controls nuclear magnetic resonance, if the Hall sensor-U1 does not sense that the protective door is closed, the pin 2 of the Hall sensor-U1 outputs a high level, the light emitting diode VD1 is not lighted, the light emitting diode VD2 is lighted, the high level is input into the photoelectric coupler 4N25-1, the emitter of the photoelectric coupler 4N25-1 outputs a high level, the MCU13 controls the nuclear magnetic resonance to stop working, similarly, if the Hall sensor-U2 does not sense that the protective door is closed, the pin 2 of the Hall sensor-U2 outputs a high level, the light emitting diode VD3 is not lighted, the light emitting diode VD4 is lighted, the high level is input into the photoelectric coupler 4N25-2, the emitter of the photoelectric coupler 4N25-2 outputs a high level, the MCU13 controls the nuclear magnetic resonance to stop working, if the Hall sensor-U3 does not sense that the protective door is closed, the pin 2 of the Hall sensor-U3 outputs a high level, the light-emitting diode VD5 is not lighted, the light-emitting diode VD6 is lighted, the high level is input into the photoelectric coupler 4N25-3, the emitter of the photoelectric coupler 4N25-3 outputs the high level, the MCU13 controls the nuclear magnetic resonance to stop working, and the nuclear magnetic resonance is prevented from causing damage to the skin of a person due to the fact that a person enters the device by mistake.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A nuclear magnetic resonance protective door control circuit is characterized by comprising a storage battery power supply unit (1), a power switch (2), a first Hall sensor (3), a second Hall sensor (4), a third Hall sensor (5), a first detection circuit (6), a second detection circuit (7), a third detection circuit (8), a first indicator lamp set (9), a second indicator lamp set (10) and a third indicator lamp set (11), wherein the first Hall sensor (3), the second Hall sensor (4) and the third Hall sensor (5) are all connected with the power switch (2), the first Hall sensor (3) is connected with the input end of the first detection circuit (6), the output end of the first detection circuit (6) is connected with the first indicator lamp set (9), the second Hall sensor (4) is connected with the input end of the second detection circuit (7), the output end of the second detection circuit (7) is connected with the second indicator lamp set (10), the third Hall sensor (5) is connected with the input end of the third detection circuit (8), the output end of the third detection circuit (8) is connected with the third indicator lamp set (11), and the storage battery power supply unit (1) supplies power for the power switch (2), the first Hall sensor (3), the second Hall sensor (4), the third Hall sensor (5), the first detection circuit (6), the second detection circuit (7), the third detection circuit (8), the first indicator lamp set (9), the second indicator lamp set (10) and the third indicator lamp set (11).

2. The nuclear magnetic resonance protective door control circuit according to claim 1, characterized by further comprising an or gate circuit (12) and an MCU (13), wherein the output ends of the first detection circuit (6), the second detection circuit (7) and the third detection circuit (8) are all connected with the input end of the or gate circuit (12), the output end of the or gate circuit (12) is connected with the MCU (13), and the storage battery power supply unit (1) supplies power to the or gate circuit (12) and the MCU (13).

3. A nuclear magnetic resonance guard gate control circuit according to claim 2, the first detection circuit (6) comprises a storage battery BT1, a switch S1, a Hall sensor-U1, a resistor R1, a resistor R4 and light-emitting diodes VD1-VD2, the storage battery BT1 is connected in series with a switch S1, a resistor R4, a light-emitting diode VD1 and a light-emitting diode VD2, the cathode of the light-emitting diode VD2 is grounded, the other end of the storage battery BT1 is grounded, the 2 feet of the Hall sensor-U1 are connected with the node between the light emitting diode VD1 and the light emitting diode VD2, the 1 pin of the hall sensor-U1 is connected to the node between the switch S1 and the resistor R4, the 2-pin of the Hall sensor-U1 is connected with a resistor R1, the other end of the resistor R1 is connected with a node between a switch S1 and the resistor R4, and the 3-pin of the Hall sensor-U1 is grounded.

4. A door control circuit according to claim 3, characterized in that said second detection circuit (7) comprises a hall sensor-U2, a resistor R2, a resistor R6 and a light emitting diode VD3-VD4, said resistor R6 is connected in series with a light emitting diode VD3 and a light emitting diode VD4, the cathode of said light emitting diode VD4 is grounded, the other end of said resistor R6 is connected with a switch S1, the 2-pin of said hall sensor-U2 is connected with the node between said light emitting diode VD3 and said light emitting diode VD4, the 1-pin of said hall sensor-U2 is connected with the switch S1, the 2-pin of said hall sensor-U2 is connected with the resistor R2, the other end of said resistor R2 is connected with the switch S1, and the 3-pin of said hall sensor-U2 is grounded.

5. A control circuit of a nuclear magnetic resonance protective door according to claim 4, characterized in that the third detection circuit (8) comprises a Hall sensor-U3, a resistor R3, a resistor R8 and a light emitting diode VD5-VD6, the resistor R8 is connected in series with the light emitting diode VD5 and the light emitting diode VD6, the cathode of the light emitting diode VD6 is grounded, the other end of the resistor R8 is connected with a switch S1, the 2 pin of the Hall sensor-U3 is connected with the node between the light emitting diode VD5 and the light emitting diode VD6, the 1 pin of the Hall sensor-U3 is connected with the switch S1, the 2 pin of the Hall sensor-U3 is connected with the resistor R3, the other end of the resistor R3 is connected with a switch S1, and the 3 pin of the Hall sensor-U3 is grounded.

6. The nuclear magnetic resonance protective door control circuit according to claim 5, wherein the OR gate circuit (12) includes a photo-electric coupler 4N25-1, a photo-electric coupler 4N25-2, a photo-electric coupler 4N25-3, a resistor R5, a resistor R7, a resistor R9, a resistor R10 and a diode D1-D3, a 2-pin series resistor R7 of the Hall sensor-U1 and a cathode of the photo-electric coupler 4N25-1, an anode of the photo-electric coupler 4N25-1 is connected with +5V, a collector of the photo-electric coupler 4N25-1 is connected with +5V, an emitter of the photo-electric coupler 4N25-1 is connected with the diode D1, a cathode of the diode D1 is connected with the resistor R5, the other end of the resistor R5 is grounded, a 2-pin series resistor R9 of the Hall sensor-U2 and a cathode of the photo-electric coupler 4N25-2, the anode of the photoelectric coupler 4N25-2 is connected with +5V, the collector of the photoelectric coupler 4N25-2 is connected with +5V, the emitter of the photoelectric coupler 4N25-2 is connected with a diode D2, the cathode of the diode D2 is connected with a resistor R5, a 2-pin series resistor R10 of a Hall sensor-U3 and the cathode of the photoelectric coupler 4N25-3, the anode of the photoelectric coupler 4N25-3 is connected with +5V, the collector of the photoelectric coupler 4N25-3 is connected with +5V, the emitter of the photoelectric coupler 4N25-3 is connected with the diode D3, and the cathode of the diode D3 is connected with the resistor R5.