Circuit system and method for waking up a transmitter

Abstract

The present invention discloses a circuit system for waking up a transmitter, including a transmitter and a sensor; the sensor is provided with a first electrode contact and a second electrode contact, the circuit system also includes a wake-up circuit, the wake-up circuit includes a processor, a power supply, a signal acquisition unit for acquiring sensor signals, and a sensor connection unit for connecting the electrodes of the sensor; at the same time, the first electrode contact and the second electrode contact of the sensor are connected to the IO of the processor through an analog switch. The circuit system for waking up the transmitter is in a deep sleep state when the transmitter is not working, and the transmitter will be awakened and enter the working state only when the biosensor is connected. When the sensor is not awakened, the circuit system is in a sleep state, with low power consumption, thereby extending the service life of the transmitter.

Description

Technical Field

[0001] The present invention relates to the field of sensor technology, and more particularly, to a circuit system and method for waking up a transmitter. Background Art

[0002] The transmitter is used to detect the signal generated by the biosensor and convert the detected signal into the corresponding physiological parameters. At the same time, the collected physiological parameters are sent to the mobile phone software for display through wireless transmission. The transmitter is usually worn on the body, usually on the arm or abdomen, so there are certain requirements for the design of the transmitter, such as waterproof and small size. In this way, after the transmitter is worn on the body, it will not have too much impact on the person's daily life.

[0003] In view of the above-mentioned two-point transmitter design requirements, waterproof and small size, there are some restrictions on the selection of batteries in the transmitter during design, and some large-capacity batteries cannot be selected. Considering that the product will have a long inventory time before normal use during the actual production and sales process, the transmitter must be in a state of extremely low power consumption when not in operation. When the user needs to use the transmitter, the transmitter can be awakened to make it work normally.

[0004] Existing manufacturers divide the transmitter design of this function into several categories. One type of battery is detachable, and there is no need to consider the power consumption of the transmitter in the dormant state. When the battery is installed in the transmitter, the transmitter will start working immediately. However, this design will reduce the waterproof level of the transmitter. Another type uses rechargeable batteries, which increases the cost and also needs to consider the charging problem. Another type uses other methods for wake-up, such as NFC or Hall switch, but they all need to add extra peripheral circuits for coordination. Due to the power consumption of the peripheral circuits, the dormant power consumption cannot be very low, and the cost will also increase. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a circuit system and method for waking up a transmitter. The circuit system for waking up the transmitter is in a deep sleep state when the transmitter is not working. The transmitter will be awakened and enter the working state only when a biosensor is connected.

[0006] To achieve the above object, the present invention provides the following technical solution: a circuit system for waking up a transmitter, comprising a transmitter and a sensor; the sensor is provided with a first electrode contact and a second electrode contact, the circuit system further comprises a wake-up circuit, the wake-up circuit comprises a processor, a power supply, a signal acquisition unit for acquiring sensor signals, and a sensor connection unit for connecting electrodes of the sensor; at the same time, the first electrode contact and the second electrode contact of the sensor are connected to the IO of the processor through an analog switch;

[0007] When the sensor is not connected to the transmitter, the circuit system sets the IO connected to the first electrode contact as a wake-up source to put the circuit system into a sleep state; when the sensor is connected to the transmitter, the processor disconnects the analog switch to put the circuit system into a working state.

[0008] The circuit system for waking up the transmitter is in a deep sleep state when the transmitter is not working. The transmitter will be awakened and enter the working state only when the biosensor is connected. When the sensor is not awakened, the circuit system is in a dormant state, with low power consumption, which can extend the service life of the transmitter. At the same time, compared with the existing technology, the power supply is placed inside the transmitter, which has excellent waterproof performance.

[0009] Preferably, the sensor is provided with a first reference electrode contact, a second reference electrode contact, a working electrode contact and a counter electrode contact, and any two of the first reference electrode contact, the second reference electrode contact, the working electrode contact and the counter electrode contact are respectively the first electrode contact and the second electrode contact.

[0010] Preferably, the analog switch is externally connected to the processor.

[0011] Preferably, the analog switch is arranged inside the processor.

[0012] Preferably, the analog switch comprises a switch S1 and a switch S2.

[0013] Preferably, the processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port.

[0014] The method for waking up a transmitter includes the circuit system for waking up a transmitter as described above, and includes the following steps:

[0015] 1) Initialize the hardware modules in the circuit system;

[0016] 2) The processor controls the analog switch to be closed so that the first electrode contact and the second electrode contact on the sensor are connected to the IO of the processor;

[0017] 3) The processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port;

[0018] 4) Determine whether the level of the first electrode contact is high; if it is low, set the first electrode contact as the wake-up source; if it is high, delay debouncing and judge again. If the level of the first electrode contact is still high, it is determined that the sensor has been connected, and the processor disconnects the analog switch to wake up the system.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. The circuit system for waking up the transmitter is in a deep sleep state when the transmitter is not working. The transmitter will be awakened and enter the working state only when the biosensor is connected. When the sensor is not awakened, the circuit system is in a dormant state, with low power consumption, which can extend the service life of the transmitter.

[0021] 2. At the same time, the power supply of the circuit system of the wake-up transmitter is placed inside the transmitter, which has excellent waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the sensor of the present invention;

[0023] Figure 2 A schematic diagram of a processor controlling an analog switch of the present invention;

[0024] Figure 3 Flowchart for waking up the transmitter.

[0025] Figure numerals: 1. sensor; 2. working electrode contact; 3. counter electrode contact; 4. first reference electrode contact; 5. second reference electrode contact. DETAILED DESCRIPTION

[0026] The present invention will be further described with reference to the accompanying drawings.

[0027] Existing sensors generally include three electrodes, including a working electrode, a reference electrode, and a counter electrode. The transmitter has three contacts connected to the three electrodes, and then connected to the collection circuit inside the transmitter. In the design of the present invention, the reference electrode of the electrode is designed as two contacts (it can be the other two electrodes), and the entire sensor 1 electrode has four contacts connected to the transmitter, as shown in the following embodiment.

[0028] This embodiment discloses a circuit system for waking up the transmitter, such as Figure 1 and 2As shown, it includes a transmitter and a sensor 1, and the sensor 1 is provided with a first electrode contact and a second electrode contact. It should be noted that the sensor includes multiple electrode contacts, and two electrode contacts are arbitrarily selected from the multiple electrode contacts as the first electrode contact and the second electrode contact; the circuit system also includes a wake-up circuit, and the wake-up circuit includes a processor, a power supply, a signal acquisition unit for acquiring the sensor 1 signal, and a sensor connection unit for connecting the electrodes of the sensor 1, wherein the power supply is mainly used to power the entire circuit system, and the processor is used to control the working state of the entire circuit system; at the same time, the first electrode contact and the second electrode contact of the sensor 1 are connected to the IO of the processor through an analog switch, and the analog switch includes a switch S1 and a switch S2; when the sensor 1 is not connected to the transmitter, the circuit system sets the IO connected to the first electrode contact as a wake-up source to put the circuit system into a dormant state; when the sensor 1 is connected to the transmitter, the processor disconnects the analog switch to put the circuit system into a working state. Among them, the signal acquisition unit is composed of a signal amplifier, a filtering circuit, and an analog-to-digital converter, and the electrical signal generated by the sensor is processed through the signal amplifier, the filtering circuit to the analog-to-digital converter, and then to the MCU.

[0029] The circuit system for waking up the transmitter is in a deep sleep state when the transmitter is not working, and all parts except the processor are in a disconnected state. The transmitter will only be awakened and enter the working state when the biosensor 1 is connected. When the sensor 1 is not awakened, the circuit system is in a dormant state, with low power consumption, which can extend the service life of the transmitter; at the same time, compared with the prior art, the power supply is placed inside the transmitter, which has excellent waterproof performance.

[0030] In some embodiments, the sensor is provided with a first reference electrode contact, a second reference electrode contact, a working electrode contact, and a counter electrode contact, and any two of the first reference electrode contact, the second reference electrode contact, the working electrode contact, and the counter electrode contact are the first electrode contact and the second electrode contact, respectively. As an embodiment, the first electrode contact is the first reference electrode contact (i.e., contact 1 in the accompanying drawings), and the second electrode contact is the second reference electrode contact (i.e., contact 2 in the accompanying drawings).

[0031] In some implementations, the analog switch is externally connected to the processor; or the analog switch is disposed inside the processor.

[0032] In some implementations, the processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port.

[0033] Methods to wake up the transmitter, such as Figure 3 As shown, the circuit system including the above-mentioned wake-up transmitter includes the following steps:

[0034] 1) After the system is powered on, the hardware modules in the circuit system are initialized;

[0035] 2) The processor controls the analog switches S1 and S2 to be closed, so that the first electrode contact and the second electrode contact on the sensor 1 are connected to the IO of the processor; preferably, the first electrode contact is the first reference electrode contact 4, and the second electrode contact is the second reference electrode contact 5;

[0036] 3) The processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port;

[0037] 4) Determine whether the level of the first electrode contact is high; if it is low, set the first electrode contact as the wake-up source; if it is high, delay debouncing and judge again. If the level of the first electrode contact is still high, it is determined that sensor 1 has been connected, and the processor disconnects the analog switches S1 and S2 to prevent the circuit of the wake-up part from affecting the signal of sensor 1 and wake up the system.

[0038] That is, if sensor 1 is not connected after power-on, the system circuit will set the IO connected to the first electrode contact as the wake-up source, and the entire system will enter a dormant state; when sensor 1 is connected, the entire system will be awakened and the operations after the system is powered on will be executed.

[0039] The specified directions in this specific embodiment are only for the convenience of describing the positional relationship and the coordination relationship between the components. The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A circuit system for waking up a transmitter, including a transmitter and a sensor (1); Its characteristics are: The sensor (1) is provided with a first electrode contact and a second electrode contact, the circuit system further comprises a wake-up circuit, the wake-up circuit comprises a processor, a power supply, a signal acquisition unit for acquiring sensor signals, and a sensor connection unit for connecting electrodes of the sensor (1); at the same time, the first electrode contact and the second electrode contact of the sensor (1) are connected to the IO of the processor via an analog switch; When the sensor (1) is not connected to the transmitter, the circuit system sets the IO connected to the first electrode contact as a wake-up source to put the circuit system into a dormant state; when the sensor (1) is connected to the transmitter, the processor disconnects the analog switch to put the circuit system into a working state; The sensor (1) is provided with a first reference electrode contact (4), a second reference electrode contact (5), a working electrode contact (2) and a counter electrode contact (3); any two of the first reference electrode contact (4), the second reference electrode contact (5), the working electrode contact (2) and the counter electrode contact (3) are respectively the first electrode contact and the second electrode contact; The processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port.

2. The circuit system for waking up a transmitter according to claim 1, Its characteristics are: The analog switch is externally connected to the processor.

3. The circuit system of the wake-up transmitter according to claim 1, Its characteristics are: The analog switch is arranged inside the processor.

4. The circuit system for waking up a transmitter according to claim 1, Its characteristics are: The analog switch includes a switch S1 and a switch S2.

5. How to wake up the transmitter, Its characteristics are: A circuit system comprising a wake-up transmitter as claimed in any one of claims 1 to 4, comprising the following steps: 1) Initialize the hardware modules in the circuit system; 2) The processor controls the analog switch to be closed, so that the first electrode contact and the second electrode contact on the sensor (1) are connected to the IO of the processor; 3) The processor sets the second electrode contact to a high level through the IO port, and sets the IO connected to the first electrode contact as an input port; 4) Determine whether the level of the first electrode contact is high; if it is low, set the first electrode contact as the wake-up source; if it is high, delay debouncing and determine again. If the level of the first electrode contact is still high, it is determined that the sensor (1) has been connected, and the processor disconnects the analog switch to wake up the system.

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