CN105788114A - System for ward on-demand calling - Google Patents

Abstract

This application discloses a system for calling on demand in wards, including: power lines, calling devices placed in each bed, and a display device, and the calling device compiles call coded signals containing corresponding wards and beds according to the level of demand , transmitted to the display device via the power line in a carrier communication manner. The display device receives and decodes the call coding signal through the power line, and obtains and displays corresponding ward, bed and demand level information. The application can carry out graded reminders according to the patient's demand level, and transmit signals in the form of power line carrier communication.

Description

System for on-demand calling in wards

technical field

This application relates to a calling system, in particular to a system for calling on demand in wards.

Background technique

Each bed in the hospital ward will be equipped with a signal bell for calling. When the patient has different needs, such as: the body is not comfortable, or needs to replace the rehydration fluid, etc., they will ring the signal bell and ask the nurse for help. Nowadays, the signal bells used clinically are all single-sound signal bells. No matter what the needs are, after the patient rings the signal bell, the nurses will rush over because they are confused about the situation. When they pass by, they find that some patients are really uncomfortable, etc. Emergency situations, some are general situations such as patients who just need to drink saliva or want to get up. Most of the time, when a nurse hears the bell ringing for a patient who is undergoing infusion, the nurse has to bring a bottle of rehydration solution. However, the patient still has a lot of rehydration solution. Need to go back to the doctor's office to report to the doctor.

Contents of the invention

In view of the above problems, the ward signal bell with multiple sounds (requirements) has become a demand. For example: when the body is unwell and needs a doctor's diagnosis and treatment, press the "red" button, and the "red light reminder signal" will appear. After the nurse obtains the information, he should be vigilant, put down everything in his hand, and immediately rush to the patient's bedside to observe and treat the patient. , to improve the timeliness of nurses' response to the patient's discomfort; when the remaining 50ML of intravenous infusion fluid needs to be configured for the next bottle of fluid replacement, press the "green" button, and a "green light reminder signal" will appear, which can remind nurses to prepare fluid infusion in time to avoid Overtime preparation of infusion fluid can avoid infusion reactions and improve the efficacy of drugs; when the infusion fluid infusion is over and needs to be replaced, press the "yellow" button and a "yellow light reminder" will appear. Replenish the fluid to the patient's bedside and continue the fluid rehydration for the patient.

The purpose of this application is to improve the pager with the traditional single reminder function, and to provide an on-demand call system for wards that can provide graded reminders according to the patient's needs and transmit them in the form of power line carrier communication.

According to one aspect of the present application, a system for on-demand calling in a ward is provided, including:

power line;

The calling device placed in each bed compiles the calling coded signal according to the level of demand, and transmits it by means of carrier communication via the power line; and

The display device receives and decodes the call coding signal through the power line, obtains and displays call demand information.

According to the above scheme, call signals of various demand levels are transmitted through power line carrier communication, and the patient's call needs are color-coded (graded) and reminded, which has the advantages of reliable channel, high-speed transmission, and multiplexing of motion signals at the same time. And no additional line investment is required.

In some embodiments, the calling device includes:

an input device for the patient to input the level of need;

A coding device that compiles the demand level, the pre-stored ward number, and the bed number into a call coding signal; and

a signal transmission circuit for amplifying and coupling the call encoding signal into said power line;

The display device includes:

receiving a paging coded signal from said power line, coupled and filtered signal receiving circuit;

decoding means for decoding the filtered call coded signal to derive the need level, ward number and bed number; and

The display screen that displays the demand level, ward number and bed number.

According to the above scheme, the on-demand call system can be realized through simple encoding and decoding devices, so as to train nurses to distinguish priorities, arrange work sequences reasonably, solve problems in time, meet patients' needs, improve patients' satisfaction with medical services, and improve The orderliness of the nurse's work.

In some embodiments, the signal sending circuit is connected to the signal receiving circuit through the power line, and the signal sending circuit includes:

a power amplifying circuit for amplifying the paging coded signal; and

coupling the amplified paging coded signal into the first carrier coupling circuit of the power line;

The signal receiving circuit includes:

a second carrier coupling circuit for coupling a call encoding signal received from said power line; and

A filter amplifier circuit for amplifying and filtering the coupled call coding signal.

In some embodiments, the signal sending circuit includes: first to fourth capacitors, a first transformer, a first resistor, a first triode, a first inductor, a second inductor, and a first power supply, wherein,

One end of the first resistor receives the call code signal, and the other end is connected to the base of the first triode;

The emitter of the first triode is grounded, and the collector is connected to the secondary winding of the first transformer;

One end of the first capacitor is connected to the first power supply, and the other end is grounded;

One end of the secondary winding of the first transformer is connected to the first power supply, and the other end is connected to the first power supply through the second capacitor;

One end of the primary winding of the first transformer is connected to the power line sequentially through the first inductor and the third capacitor, and the other end is connected to the power line sequentially through the second inductor and the fourth capacitor. By embodying the signal sending circuit, the effective preprocessing of the call coded signal makes it better transmitted through the power line.

In some embodiments, the signal receiving circuit includes: fifth to twelfth capacitors, third to fifth inductors, a second transformer, second to fourth resistors, first to third diodes, second triode and a second power supply, where,

One end of the primary winding of the second transformer is sequentially connected to the power line through the third inductor and the fifth capacitor, and the other end is sequentially connected to the power line through the fourth inductor and the sixth capacitor;

One end of the secondary winding of the second transformer is connected to the base of the second triode through the eighth capacitor, and the other end is grounded;

The seventh capacitor is connected between the two ends of the secondary winding of the second transformer;

The cathode of the first diode is connected to the base of the second triode, and the anode is grounded;

One end of the ninth capacitor is connected to the base of the second triode, and the other end is grounded;

One end of the third resistor is connected to the base of the second triode, and the other end is grounded;

The emitter of the second triode is grounded, and the collector is connected to the second power supply through the fifth inductor;

One end of the second resistor is connected to the second power supply, and the other end is connected to the base of the second triode;

The tenth capacitor is connected in parallel with the fifth inductor;

One end of the fourth resistor is connected to the collector of the second triode, and the other end is connected to the anode of the second diode through the eleventh capacitor;

The cathode of the second diode is connected to the decoding device;

The cathode of the third diode is connected to the anode of the second diode, and the anode is grounded;

One end of the twelfth capacitor is grounded, and the other end is connected to the cathode of the second diode. By embodying the signal receiving circuit, effective preprocessing is performed on the received call coded signal, which is convenient for subsequent decoding devices to decode.

Description of drawings

FIG. 1 is a structural diagram of a system for on-demand calls in wards according to an embodiment of the present invention;

Fig. 2 is a circuit diagram of the signal sending circuit in the system for ward call-on-demand shown in Fig. 1;

FIG. 3 is a circuit diagram of a signal receiving circuit in the system shown in FIG. 1 for on-demand calls in wards.

detailed description

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 , according to an embodiment of the present invention, a system for on-demand calling in a ward includes a power line 1 , a plurality of calling devices 2 and a display device 3 .

The calling device 2 is respectively placed on each bed in each ward. Each call device 2 compiles a call coded signal including the corresponding ward and bed according to the demand level, and transmits it to the display device 3 via the power line 1 by means of carrier communication. The display device 3 decodes the received calling coded signal to obtain and display the corresponding ward, bed and demand level information.

Specifically, the calling device 2 includes: an input device 21, an encoding device 22 and a signal sending circuit 23, wherein,

The patient inputs different demand levels according to his actual needs through the input device 21 . For example: "red, green, yellow" three-color button device. When the body is unwell and needs a doctor's diagnosis and treatment, press the "red" button; when there is not much fluid left in the intravenous infusion, and the next bottle of fluid needs to be configured, press the "green" button; when the fluid infusion is over and needs to be replaced, press Press the "Yellow" button. Therefore, it is divided into three demand levels. Each requirement level is a requirement code.

Coding device 22 prestores the ward number and bed number where calling device 2 is located, and coding device 22 compiles the demand code (need level), area code (ward number) and place code (bed number) into a call coding signal.

The signal transmission circuit 23 amplifies and couples the call coding signal into the power line 1 . Specifically, please refer to FIG. 2. In this embodiment, the signal sending circuit 23 includes: first to fourth capacitors C1-C4, a first transformer T1, a first resistor R1, a first triode Q1, and a first inductor L1 , the second inductance L2 and the first power supply VCC1, wherein,

One end of the first resistor R1 receives the call code signal, and the other end is connected to the base of the first transistor Q1.

The emitter of the first triode Q1 is grounded, and the collector is connected to the secondary winding of the first transformer T1.

One end of the first capacitor C1 is connected to the first power supply VCC1, and the other end is grounded.

One end of the secondary winding of the first transformer T1 is connected to the first power supply VCC1, and the other end is connected to the first power supply VCC1 through the second capacitor C2.

One end of the primary winding of the first transformer T1 is connected to the power line 1 through the first inductor L1 and the third capacitor C3 in sequence, and the other end is connected to the power line 1 through the second inductor L2 and the fourth capacitor C4 in sequence.

The first resistor R1 and the first transistor Q1 form a power amplifier circuit 231, which amplifies the call coded signal. The first to fourth capacitors C1 - C4 , the first transformer T1 , the first inductor L1 , the second inductor L2 and the first power supply VCC1 form a first carrier coupling circuit 232 , which couples the amplified calling code signal into the power line 1 .

Specifically, the display device 3 includes: a signal receiving circuit 31, a decoding device 32 and a display screen 33, wherein,

The paging coded signal transmitted via power line carrier communication is received by the signal receiving circuit 31, coupled and filtered.

Specifically, please refer to FIG. 3. In this embodiment, the signal receiving circuit 31 includes: fifth to twelfth capacitors C5-C12, third to fifth inductors L3-L5, a second transformer T2, second to fourth Resistors R2-R4, first to third diodes D1-D3, second triode Q2 and second power supply VCC2, wherein,

One end of the primary winding of the second transformer T2 is connected to the power line 1 through the third inductor L3 and the fifth capacitor C5 in sequence, and the other end is connected to the power line 1 through the fourth inductor L4 and the sixth capacitor C6 in sequence.

One end of the secondary winding of the second transformer T2 is connected to the base of the second transistor Q2 through the eighth capacitor C8, and the other end is grounded.

The seventh capacitor C7 is connected between the two ends of the secondary winding of the second transformer T2.

The cathode of the first diode D1 is connected to the base of the second transistor Q2, and the anode is grounded.

One end of the ninth capacitor C9 is connected to the base of the second transistor Q2, and the other end is grounded.

One end of the third resistor R3 is connected to the base of the second transistor Q2, and the other end is grounded.

The emitter of the second triode Q2 is grounded, and the collector is connected to the second power supply VCC2 through the fifth inductor L5.

One end of the second resistor R2 is connected to the second power supply VCC2, and the other end is connected to the base of the second transistor Q2.

The tenth capacitor C10 is connected in parallel with the fifth inductor L5.

One end of the fourth resistor R4 is connected to the collector of the second transistor Q2, and the other end is connected to the anode of the second diode D2 through the eleventh capacitor C11.

The cathode of the second diode D2 is connected to the decoding device 32 .

The cathode of the third diode D3 is the anode of the second diode D2, and the anode is grounded.

One end of the twelfth capacitor C12 is grounded, and the other end is connected to the cathode of the second diode D2.

The fifth and sixth capacitors (C5, C6), the third and fourth inductors (L3, L4), the second transformer T2, and the seventh and eighth capacitors (C7, C8) form a second carrier coupling circuit 311, which is used for receiving Coupling of call coded signals from power line 1. The ninth to the twelfth capacitors C9-C12, the fifth inductance L5, the second to the fourth resistors R2-R4, the first to the third diodes D1-D3, the second triode Q2 and the second power supply VCC2 The filtering and amplifying circuit 312 amplifies the coupled call coding signal by the second transistor Q2, and then sends it to the decoding device 32 after filtering by the second and third diodes (D2, D3).

The decoding device 32 decodes the filtered call coded signal to obtain a demand code (need level), an area code (ward number) and a place code (bed number). The display screen 33 displays the demand level, ward number and bed number, and at the same time, lights of different colors or different sounds can be set according to different demand levels, so as to remind the nurse conveniently.

In this embodiment, both the encoding device 22 and the decoding device 32 are implemented by a microprocessor.

The above is only one embodiment of the present invention. It should be pointed out that those skilled in the art can make several similar deformations and improvements without departing from the inventive concept of the present invention. considered within the protection scope of the present invention.

Claims (5)

1. A system for calling on demand in wards, characterized in that it comprises: powerline(1); The call device (2) placed in each bed, compiles the call coded signal according to the demand level, and transmits it in the form of carrier communication through the power line (1); and The display device (3) receives and decodes the call coding signal through the power line (1), obtains and displays call demand information. 2. The system for on-demand calling in wards according to claim 1, characterized in that the calling device (2) comprises: an input device (21) for the patient to input the level of demand; A coding device (22) that compiles the demand level, the pre-stored ward number and the bed number into a call coding signal; and amplifying and coupling the call coding signal into the signal sending circuit (23) of the power line (1); The display device (3) includes: A signal receiving circuit (31) coupled and filtered for receiving a call encoding signal from the power line (1); Decoding means (32) for decoding the filtered call coded signal to obtain demand level, ward number and bed number; and A display screen (33) for displaying demand level, ward number and bed number. 3. The system for on-demand calling in wards according to claim 2, characterized in that the signal sending circuit (23) is connected to the signal receiving circuit (31) through the power line (1), wherein : The signal sending circuit (23) includes: a power amplification circuit (231) for amplifying said paging coded signal; and coupling the amplified call coding signal into the first carrier coupling circuit (232) of the power line (1); The signal receiving circuit (31) includes: a second carrier coupling circuit (311) for coupling a call coding signal received from said power line (1); and A filter amplifier circuit (312) for amplifying and filtering the coupled call coding signal. 4. The system for on-demand calling in wards according to claim 3, characterized in that, the signal sending circuit comprises: first to fourth capacitors (C1, C2, C3, C4), a first transformer ( T1), the first resistor (R1), the first triode (Q1), the first inductor (L1), the second inductor (L2) and the first power supply (VCC1), wherein, One end of the first resistor (R1) receives the call code signal, and the other end is connected to the base of the first triode (Q1); The emitter of the first triode (Q1) is grounded, and the collector is connected to the secondary winding of the first transformer (T1); One end of the first capacitor (C1) is connected to the first power supply (VCC1), and the other end is grounded; One end of the secondary winding of the first transformer (T1) is connected to the first power supply (VCC1), and the other end is connected to the first power supply (VCC1) through the second capacitor (C2); One end of the primary winding of the first transformer (T1) is sequentially connected to the power line through the first inductance (L1) and the third capacitor (C3), and the other end is sequentially connected to the power line through the second inductance (L2) and the fourth capacitor (C4) Connect the power lines. 5. The system for on-demand calling in wards according to claim 3 or 4, characterized in that the signal receiving circuit comprises: fifth to twelfth capacitors (C5-C12), third to fifth Inductor (L3~L5), second transformer (T2), second to fourth resistors (R2~R4), first to third diodes (D1~D3), second triode (Q2) and first Two power supply (VCC2), where, One end of the primary winding of the second transformer (T2) is sequentially connected to the power line through the third inductor (L3) and the fifth capacitor (C5), and the other end is sequentially connected to the power line through the fourth inductor (L4) and the sixth capacitor (C6) connecting the power line; One end of the secondary winding of the second transformer (T2) is connected to the base of the second triode (Q2) through the eighth capacitor (C8), and the other end is grounded; The seventh capacitor (C7) is connected between the two ends of the secondary winding of the second transformer (T2); The cathode of the first diode (D1) is connected to the base of the second triode (Q2), and the anode is grounded; One end of the ninth capacitor (C9) is connected to the base of the second triode (Q2), and the other end is grounded; One end of the third resistor (R3) is connected to the base of the second triode (Q2), and the other end is grounded; The emitter of the second triode (Q2) is grounded, and the collector is connected to the second power supply (VCC2) through the fifth inductor (L5); One end of the second resistor (R2) is connected to the second power supply (VCC2), and the other end is connected to the base of the second triode (Q2); The tenth capacitor (C10) is connected in parallel with the fifth inductor (L5); One end of the fourth resistor (R4) is connected to the collector of the second triode (Q2), and the other end is connected to the anode of the second diode (D2) through the eleventh capacitor (C11); The cathode of the second diode (D2) is connected to the decoding device; The cathode of the third diode (D3) is connected to the anode of the second diode (D2), and the anode is grounded; One end of the twelfth capacitor (C12) is grounded, and the other end is connected to the cathode of the second diode (D2).