Control device of intelligent passive equipment and control system thereof

Abstract

The utility model provides a control device of intelligent passive equipment and a control system thereof. The control device of the intelligent passive equipment comprises a control module and a plurality of power switch modules, the power switch module comprises a level regulation and control circuit, a regulation and control unit and a power supply circuit; the level regulation and control circuit and the power supply circuit are electrically connected with the regulation and control unit, the control module is electrically connected with the level regulation and control circuit, the power supply circuit is used for electrically connecting a power supply end with corresponding intelligent passive equipment, and the regulation and control unit is used for controlling on-off of the power supply circuit; the control module is used for providing regulation level for the level regulation circuit, the level regulation circuit electrically connects the power supply end with the corresponding intelligent passive equipment through the regulation unit when receiving the regulation level, and the level regulation circuit controls the power supply circuit to be disconnected through the regulation unit when not receiving the regulation level. And the power supply end is disconnected from the corresponding intelligent passive equipment. According to the utility model, the energy consumption of the intelligent passive equipment can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of Internet of Things (IoT) technology, and in particular to a control device and control system for an intelligent passive device. Background Technology

[0002] Some passive devices do not need to be connected to the power grid or have batteries installed during their operation to perform their main functions. However, they need to be connected to an external power source to enable the smart gateway to interact with the corresponding smart devices. In this way, the passive device becomes a smart passive device.

[0003] For example, a water meter does not need to be connected to an external power source when recording water consumption. However, if the water meter is connected to the Internet of Things (IoT), it needs to be connected to an external power source and a data acquisition module to become a smart water meter, so that the smart gateway can obtain the data from the water meter.

[0004] For example, a non-electric humidifier that uses the principle of natural evaporation and relies on the heat from a radiator to evaporate water needs to have a water level sensor installed in it that requires an external power source if the user needs to remotely know the amount of water remaining in the humidifier. The water level sensor should then be connected to a smart gateway to become a smart non-electric humidifier.

[0005] However, existing intelligent passive devices all require external power supply to operate in real time, which increases the energy consumption of intelligent passive devices. Utility Model Content

[0006] To address the aforementioned issues, the present invention provides a control device and control system for intelligent passive devices. By incorporating a control module and multiple power switch modules, the device can supply power to designated intelligent passive devices when data interaction is required, thereby reducing the energy consumption of the intelligent passive devices.

[0007] In a first aspect, this utility model provides a control device for an intelligent passive device, which includes: a control module and multiple power switch modules;

[0008] The control module is electrically connected to multiple power switch modules, which are used to electrically connect the power supply to the corresponding intelligent passive device.

[0009] The power switch module includes: a level control circuit, a control unit, and a power supply circuit;

[0010] The level control circuit and the power supply circuit are electrically connected to the control unit, the control module is electrically connected to the level control circuit, the power supply circuit is used to electrically connect the power supply terminal to the corresponding intelligent passive device, and the control unit is used to control the on and off of the power supply circuit.

[0011] The control module is used to provide a control level to the level control circuit. When the level control circuit receives the control level, it connects the power supply terminal to the corresponding intelligent passive device through the control unit. When the level control circuit does not receive the control level, it controls the power supply circuit to disconnect through the control unit, so as to disconnect the power supply terminal from the corresponding intelligent passive device.

[0012] Optionally, the control device for the intelligent passive device further includes: a first level conversion module;

[0013] The first level conversion module is electrically connected to the control module;

[0014] The first level conversion module is used to receive the control level and convert the control level into an adjustment level, which is a signal that the control module can recognize.

[0015] The control module is used to provide the adjustment level to the corresponding level control circuit according to the adjustment level.

[0016] Optionally, the control module is equipped with an address register, and the address register corresponds one-to-one with the level control circuit;

[0017] The control module is used to provide the control level to the corresponding level control circuit based on the information written to the address register for the adjustment level.

[0018] Optionally, the level control circuit includes: a control switch, a power supply terminal and a ground terminal. The control switch includes: a control terminal, a first connection terminal and a second connection terminal. The control unit is connected in series with the first connection terminal and the second connection terminal between the power supply terminal and the ground terminal.

[0019] The control terminal is electrically connected to the control module, the first connection terminal is electrically connected to the power supply terminal, and the second connection terminal is electrically connected to the ground terminal. The control terminal is used to connect the first connection terminal and the second connection terminal when a control level is received, and to disconnect the first connection terminal and the second connection terminal when no control level is received.

[0020] The control unit is used to turn on the power supply circuit when the first connection terminal is connected to the second connection terminal, so as to electrically connect the power supply terminal to the corresponding intelligent passive device, and to turn off the power supply circuit when the first connection terminal is disconnected from the second connection terminal, so as to disconnect the power supply terminal from the corresponding intelligent passive device.

[0021] Optionally, the control unit includes a relay, and the power supply circuit includes a first diode and a connector;

[0022] The positive terminal of the first diode is electrically connected to the power supply terminal, the connector is connected to the negative terminal of the first diode, the induction coil of the relay is connected in series with the first connection terminal or the second connection terminal, and the induction switch of the relay is connected in series with the first diode and the connector.

[0023] Secondly, the present invention provides a control system for an intelligent passive device, the control system comprising: a gateway, a control device for the intelligent passive device as described in any of the first aspects, and a plurality of intelligent passive devices.

[0024] The gateway communicates with multiple intelligent passive devices through the control device of the intelligent passive device.

[0025] Optionally, the gateway includes: a main control module, a second level conversion module, and a network port module;

[0026] The second level conversion module is electrically connected to the control device and main control module of the intelligent passive device, and the network port module is electrically connected to the main control module and used to communicate with the cloud platform;

[0027] The second level conversion module is used to convert the levels received from the control device of the intelligent passive device and multiple intelligent passive devices into levels that can be recognized by the main control module.

[0028] Optionally, the network port module includes: a network chip, a network transformer, and a network interface;

[0029] The network chip is electrically connected to the main control module, the network transformer is electrically connected to the network chip, and the network interface is electrically connected to the network transformer.

[0030] Optionally, the second level conversion module includes: an interface unit and a second level conversion chip;

[0031] The interface unit is electrically connected to the second level conversion chip, the control device of the intelligent passive device, and multiple intelligent passive devices; the second level conversion chip is electrically connected to the main control module.

[0032] The second level conversion chip is used to convert the level received from the control device of the intelligent passive device and multiple intelligent passive devices into a level that can be recognized by the main control module.

[0033] Optionally, the gateway is electrically connected to the control device of the smart passive device and multiple smart passive devices in a daisy-chain manner.

[0034] The control device and control system for intelligent passive devices provided in this embodiment of the utility model, by setting up a control module and multiple power switch modules, can supply power to the intelligent passive device when data interaction with the specified intelligent passive device is required, so that the intelligent passive device can collect its own data and send the collected data to external devices without the power supply end needing to supply power to the intelligent passive device in real time, thereby reducing the energy consumption of the intelligent passive device. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic structural block diagram of a control device for an intelligent passive device according to an embodiment of this application;

[0037] Figure 2 This is a schematic circuit diagram of a control device for a passive device according to an embodiment of this application;

[0038] Figure 3 This is a schematic circuit diagram of a power conversion module according to an embodiment of this application;

[0039] Figure 4 This is a schematic structural block diagram of the control system of an intelligent passive device according to an embodiment of this application;

[0040] Figure 5 This is a diagram showing the connection relationship between the gateway, the intelligent passive device, and the control device according to an embodiment of this application;

[0041] Figure 6 This is a schematic partial circuit diagram of a gateway according to an embodiment of this application;

[0042] Figure 7 This is a schematic partial circuit diagram of a network chip according to an embodiment of this application;

[0043] Figure 8 This is a schematic partial circuit diagram of a network port module according to an embodiment of this application.

[0044] Figure label:

[0045] 1. Control module; 2. Power switch module; 21. Level control circuit; 211. Control switch; 22. Control unit; 23. Power supply circuit; 3. First level conversion module; 4. Power conversion module; 5. Control device; 6. Gateway; 61. Main control module; 62. Second level conversion module; 621. Interface unit; 622. Second level conversion chip; 63. Network port module; 631. Network chip; 632. Network transformer; 633. Network interface; 64. WIFI module; 7. Cloud platform; 8. Intelligent passive device. Detailed Implementation

[0046] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0048] Spatial relation terms such as "below," "under," "below," "below," "above," and "above" are used here to describe the relationship between one element or feature shown in the figure and other elements or features. Similarly, "directly above" can be used here to describe an element or feature shown in the figure that coincides in a vertical straight line direction, where it may be partially or completely overlapped, depending on the actual situation or the content of the illustration. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below," "below," or "below" of other elements will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0049] It should be noted that when an element is referred to as "fixedly connected" to another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is referred to as being "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0050] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0051] Firstly, this utility model provides a control device 5 for an intelligent passive device 8, combined with Figure 1 and Figure 2 The control device 5 includes: a control module 1 and multiple power switch modules 2.

[0052] The control module 1 is electrically connected to multiple power switch modules 2, which are used to electrically connect the power supply to the corresponding intelligent passive device 8.

[0053] The power switch module 2 includes: a level control circuit 21, a control unit 22, and a power supply circuit 23. The level control circuit 21 and the power supply circuit 23 are electrically connected to the control unit 22, respectively. The control module 1 is electrically connected to the level control circuit 21. The power supply circuit 23 is used to electrically connect the power supply terminal to the corresponding intelligent passive device 8. The control unit 22 is used to control the on / off state of the power supply circuit 23.

[0054] The control module 1 is used to provide a control level to the level control circuit 21. When the level control circuit 21 receives the control level, it controls the power supply circuit 23 to be turned on through the control unit 22 so as to electrically connect the power supply terminal to the corresponding intelligent passive device 8. When the level control circuit 21 does not receive the control level, it controls the power supply circuit 23 to be turned off through the control unit 22 so as to disconnect the power supply terminal from the corresponding intelligent passive device 8.

[0055] The control device 5 for the intelligent passive device 8 provided in this embodiment, by setting up a control module 1 and multiple power switch modules 2, can supply power to the intelligent passive device 8 when data interaction with the specified intelligent passive device 8 is required, so that the intelligent passive device 8 can collect its own data and send the collected data to external devices without the power supply end supplying power to the intelligent passive device 8 in real time, thereby reducing the energy consumption of the intelligent passive device 8.

[0056] Specifically, the level control circuit 21 includes: a control switch 211, a power supply terminal, and a ground terminal. The control switch 211 includes: a control terminal, a first connection terminal, and a second connection terminal. The control unit 22 is connected in series with the first connection terminal and the second connection terminal between the power supply terminal and the ground terminal.

[0057] The control terminal is electrically connected to the control module 1, the first connection terminal is electrically connected to the power supply terminal, and the second connection terminal is electrically connected to the ground terminal. The control terminal is used to connect the first connection terminal and the second connection terminal when a control level is received, and to disconnect the first connection terminal and the second connection terminal when no control level is received.

[0058] The control unit 22 is used to turn on the power supply circuit 23 when the first connection terminal is connected to the second connection terminal, so as to electrically connect the power supply terminal to the corresponding intelligent passive device 8, and to turn off the power supply circuit 23 when the first connection terminal is disconnected from the second connection terminal, so as to disconnect the power supply terminal from the corresponding intelligent passive device 8.

[0059] In this embodiment, the control switch 211 is an NPN transistor Q3; the control unit 22 is a relay LS1; the power supply circuit 23 includes a first diode and a connector J10; the power supply terminal provides a 3.3V voltage, and the power supply terminal provides a 12V voltage.

[0060] The anode of the first diode is electrically connected to the power supply terminal, and the connector is connected to the cathode of the first diode. The induction coil of the relay is connected in series with either the first or second connection terminal, and the inductive switch of the relay is connected in series with the first diode and the connector. The use of the first diode ensures the unidirectionality of the power supply circuit 23, preventing backflow of power from other circuits.

[0061] When one or more intelligent passive devices 8 need to be powered on, the corresponding pin of the control module 1 will output a high level 1 to control the corresponding power switch module 2 to connect the power terminal to the corresponding passive device 8.

[0062] In this embodiment, the control module 1 can control 28 passive devices 8 through 28 power switch modules 2 via its 28 pins, namely pins 1-3, 5, 6-8, and 9-29.

[0063] Specifically, taking the need to power on a passive device 8 as an example, pin 24 of control module 1 outputs a high level (1). At this time, transistor Q3 conducts, and pin 2 of transistor Q3 is pulled low, meaning pin 2 of the relay is pulled low (0). The relay's induction coil pins 1 and 2 are normally energized. This generates a magnetic field, causing contacts 3 and 4 of the relay's induction switch to close and conduct, providing the connector with 12V DC power. Thus, the intelligent devices in the passive device 8 connected to this connector, such as the sampling module, are activated, enabling data interaction with external devices. This embodiment does not limit the specific structure of the sampling module.

[0064] Furthermore, in a further optional embodiment of this example, the control module 1 is provided with an address register, which corresponds one-to-one with the level control circuit 21. The control module 1 is used to provide the control level to the corresponding level control circuit 21 according to the information written into the address register for adjusting the level.

[0065] Combination Figure 1The control device 5 of the intelligent passive device 8 further includes a first level conversion module 3. The first level conversion module 3 is electrically connected to the control module 1. The first level conversion module 3 receives the control level and converts it into an adjustment level. The adjustment level is a signal recognizable by the control module 1. The control module 1 provides an adjustment level to the corresponding level control circuit 21 according to the adjustment level.

[0066] Combination Figure 2 In this embodiment, the control module 1 is an MCU (Microcontroller Unit) chip U11; the control level is RS485 level, and the adjustment level is TTL level. The first level conversion module 3 includes a first level conversion chip U9 and an NPN transistor Q2. The first level conversion chip is used to convert between RS485 and TTL levels, enabling the control device 5 to communicate with external devices via RS485 level and internally via TTL level. The adjustment terminal of the NPN transistor Q2 is electrically connected to the fourth pin of the first level conversion chip and the thirtieth pin of the control module 1. The second connection terminal of the NPN transistor Q2 is electrically connected to the power supply terminal, and the third connection terminal of the NPN transistor Q2 is grounded.

[0067] Specifically, during the data reception process of the control device 5, when there is no data to send, the 30th pin UART_TX of the control module 1 is at a high level by default, the NPN transistor Q2 is turned on, the second pin RE of the first level conversion chip is enabled at a low level (valid), and the first pin RO of the first level conversion chip is enabled to receive data (valid). At this time, whatever data is received from the sixth and seventh pins of the first level conversion chip will be transmitted to the control module 1 through the RO channel to complete the data reception process.

[0068] During data transmission by control device 5, when data is transmitted, pin 30 (UART_TX) of control module 1 will have a pull-down level, indicating the start of data transmission. At this time, NPN transistor Q2 is off, and pin 3 (DE) of the first level conversion chip is high, enabling transmission. When the transmitted data is '0', the data '0' will be transmitted to port AB, completing the low-level transmission. When '1' is transmitted, NPN transistor Q2 is on, and pins RE and DE are both low. Under normal circumstances, the first level conversion chip is enabled for receiving. However, since the first level conversion chip is still transmitting data, as shown in Table 1 below, it is in a high-impedance state. The state of the first level conversion chip at this time is determined by the pull-up resistor A and the pull-down resistor B, that is, AB>0, transmitting '1', completing the high-level transmission.

[0069] In a further optional embodiment of this embodiment, combined with Figure 1and Figure 3 The control device 5 also includes a power conversion module 4. The power conversion module 4 is electrically connected to the power supply terminal, the first level conversion chip, the control module 1, and the power switch module 2.

[0070] In this embodiment, the power conversion module 4 includes a DC-DC power conversion chip U12, which converts the 12V voltage provided by the power supply terminal into a 3.3V voltage to supply the first level conversion chip, the control module 1, and the power switch module 2. It can be understood that the output terminal of the power conversion chip is the power supply terminal.

[0071] Secondly, this utility model provides a control system for an intelligent passive device 8, combined with Figure 4 The control system includes: a gateway 6, a control device 5 such as the intelligent passive device 8 in the first aspect, and multiple intelligent passive devices 8.

[0072] Gateway 6 communicates with multiple intelligent passive devices 8 through the control device 5 of the intelligent passive device 8.

[0073] In a further optional embodiment of this embodiment, combined with Figure 4 and Figure 5 The gateway 6 is electrically connected to the control device 5 of the intelligent passive device 8 and multiple intelligent passive devices 8 in a daisy-chain manner.

[0074] In this embodiment, the intelligent passive device 8 is exemplified by a water meter. Specifically, the gateway 6 is electrically connected to the control device 5 of the intelligent passive device 8 and multiple water meters, namely water meter 1, water meter 2, ..., water meter 28, via RS485 cables in a daisy-chain manner. This daisy-chain connection can be represented as follows: the 485+ interface of the 28th water meter is connected to the 485+ interface of the 27th water meter; then a line is drawn from the 485+ interface of the 27th water meter to connect to the 485+ interface of the 26th water meter, and so on, until the 485+ interface of the 1st water meter is connected to the 485+ interface of the first level conversion module 3, and the 485+ interface of the first level conversion module 3 is connected to the 485+ interface of the interface unit 621. The connection method for the 485- interface is the same as that for the 485+ interface, and will not be elaborated further here.

[0075] By employing a daisy-chain connection between gateway 6, control device 5, and multiple intelligent passive devices 8, the reliability and stability of the control system are improved, thereby increasing the communication distance of the control system. Furthermore, by directly connecting each device to the RS485 bus, a linear structure is formed. This significantly reduces the impact of external interference on the signal during transmission, as the transmitted signal is more concentrated and stable, thus enhancing the control system's anti-interference capability.

[0076] In a further optional embodiment of this embodiment, combined with Figure 6 Gateway 6 includes: main control module 61, second level conversion module 62 and network port module 63.

[0077] The second level conversion module 62 is electrically connected to the control device 5 and the main control module 61, and the network port module 63 is electrically connected to the main control module 61 and used to communicate with the cloud platform 7; the second level conversion module 62 is used to convert the level received from the control device 5 and multiple intelligent passive devices 8 from the intelligent passive device 8 into a level that can be recognized by the main control module 61.

[0078] The circuit structure of the second level conversion module 62 may be the same as or different from that of the first level conversion module 3.

[0079] In this embodiment, the main control module 61 is an MCU chip; the second level conversion module 62 includes an interface unit 621 and a second level conversion chip 622. The interface unit 621 is electrically connected to the second level conversion chip 622, and the second level conversion chip 622 is electrically connected to the control module 1. The interface unit 621 receives control levels, and the second level conversion chip 622 converts the control levels into adjustment levels.

[0080] Specifically, the interface unit 621 is an RS485 interface and is electrically connected to the control device 5 and the intelligent passive device 8 via an RS485 cable; the second level conversion chip 622 is a SIT3085 chip, but is not limited to this.

[0081] In a further optional embodiment of this embodiment, combined with Figure 6 , Figure 7 and Figure 8 The network port module 63 includes: a network chip 631, a network transformer 632, and a network interface 633. The network chip 631 is electrically connected to the main control module 61, the network transformer 632 is electrically connected to the network chip 631, and the network interface 633 is electrically connected to the network transformer 632.

[0082] In this embodiment, the network interface 633 is an RJ45 network interface 633, which is responsible for communicating with the intelligent passive device 8 to access the Internet; the main functions of the network transformer 632 are signal isolation, impedance matching, anti-interference, signal enhancement and transmission distance extension.

[0083] Furthermore, the network port module 63 also includes an impedance matching unit, an interference filtering unit, and a BOB-SMITH circuit.

[0084] The impedance matching unit includes resistors R14-R17 for impedance matching of the line; the interference filtering unit includes capacitors C59 and C41 for filtering power supply interference, etc.; the BOB-SMITH circuit includes resistors R18, R95, R80, R81 and capacitor C40.

[0085] Specifically, one end of resistors R14, R15, R16, and R17 is connected to four pins of the network transformer 632 that are connected to the network chip 631, namely PIN1, PIN3, PIN6, and PIN8, respectively. The other end of each is connected to the 3.3V power supply terminal. One end of capacitors C59 and C41 is connected to two pins of the network transformer 632 that are connected to the power supply terminal, namely PIN2 and PIN7, respectively. The other ends of capacitors C59 and C41 are grounded. One end of resistors R18 and R95 is electrically connected to pins 10 and 15 of the network transformer 632, respectively. One end of resistor R80 is electrically connected to pins PIN7 and PIN8 of the network interface. One end of resistor R81 is electrically connected to pins PIN4 and PIN5 of the network interface. The other ends of resistors R18, R95, R80, and R81 are all electrically connected to one end of capacitor C40, and the other end of capacitor C40 is grounded.

[0086] In this embodiment, the voltage at the power supply end is 3.3V. By configuring the network port module 63, the control system of the intelligent passive device 8 can be connected to an external Ethernet interface for communication with the external network. In this embodiment, combined with... Figure 4 The control system of the intelligent passive device 8 also includes a WIFI module 64. The control system of the intelligent passive device 8 is connected to the cloud platform 7 through the network port module 63 and the WIFI module 64.

[0087] Furthermore, under normal communication conditions between gateway 6 and cloud platform 7, users can issue control commands through cloud platform 7 to obtain parameters of control device 5. The parameters of control device 5 are mainly defined as follows, as detailed in Table 1. In Table 1, power supply 1 to 28 represent 28 independent power supply terminals.

[0088] Table 1

[0089] Serial Number Register address Function Description Read and write permissions 1 0001 Device address, default 0 Reading and writing 2 0002 baud rate parameter modification Reading and writing 3 0003 Data bit modification Reading and writing 4 0004 Stop bit modification Reading and writing 5 0005 Check digit modification Reading and writing 6 0006 Power 1 On / Off Reading and writing 7 0007 Power 2 On / Off Reading and writing … … … Reading and writing 36 0033 Power 28 On / Off Reading and writing

[0090] The control logic of the control system is as follows: Power terminals 1 to 28 in control device 5 are in the off state by default. Gateway 6 first communicates with control device 5 through RS485 interface unit 621, typically configured with Modbus protocol, to obtain / modify device addresses, baud rate parameters, etc., as shown in Table 1 above. At this time, gateway 6, through control device 5, controls power supply 1 to turn on and other power supplies to turn off. Water meter 1 then operates normally. Gateway 6 reads the device address of water meter 1 by sending a broadcast address, such as 68AAAA AAAAAA AAAA AA 03 03 81 0A00 49 16, and automatically returns the device address of water meter 1 to cloud platform 7 for recording. Then, gateway 6, through control device 5, controls power supply 2 to turn on and other power supplies to turn off. Water meter 2 then operates normally. Gateway 6 again reads the device address of water meter 2 by sending a broadcast address, such as 68AA AAAA AAAAAAAAAA 03 03 81 0A 0049 16, and automatically returns the device address of water meter 2 to cloud platform 7 for recording. Similarly, the cloud platform 7 can automatically identify, obtain, and record the device addresses of 28 water meters.

[0091] After completing the above configuration, during subsequent user operation, the block control device 5 can be configured to disconnect the power supply to all meters and only turn on the corresponding power supply when meter reading is required, so as to perform meter reading and valve operation, thereby saving a lot of electricity.

[0092] In the control system provided in this embodiment, communication between the gateway 6 and the intelligent passive device 8 is obtained through address uniqueness. Specifically, by powering on a single intelligent passive device 8 and then broadcasting its address, the address of the passive intelligent device can be read back. This operation is simple and quick, eliminating the hassle of manual meter reading.

[0093] It should be noted that the functions of all the devices involved in this utility model can be implemented by existing technology, and this utility model does not require or involve any creative improvement to the programs or code used therein.

[0094] In the description of this specification, the references to terms such as "some embodiments," "other embodiments," "ideal embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A control device for an intelligent passive device, characterized in that, The control device for the intelligent passive device includes: a control module and multiple power switch modules; The control module is electrically connected to a plurality of the power switch modules, and the power switch modules are used to electrically connect the power supply terminal to the corresponding intelligent passive device. The power switch module includes: a level control circuit, a control unit, and a power supply circuit; The level control circuit and the power supply circuit are respectively electrically connected to the control unit, the control module is electrically connected to the level control circuit, the power supply circuit is used to electrically connect the power supply terminal to the corresponding intelligent passive device, and the control unit is used to control the on / off state of the power supply circuit. The control module is used to provide a control level to the level control circuit. When the level control circuit receives the control level, it controls the power supply circuit to be turned on through the control unit to electrically connect the power supply terminal to the corresponding intelligent passive device. When the level control circuit does not receive the control level, it controls the power supply circuit to be turned off through the control unit to disconnect the power supply terminal from the corresponding intelligent passive device.

2. The control device for intelligent passive equipment according to claim 1, characterized in that, The control device for the intelligent passive device further includes: a first level conversion module; The first level conversion module is electrically connected to the control module; The first level conversion module is used to receive the control level and convert the control level into an adjustment level, wherein the adjustment level is a signal that the control module can recognize; The control module is used to provide the adjustment level to the corresponding level control circuit according to the adjustment level.

3. The control device for intelligent passive equipment according to claim 2, characterized in that, The control module is equipped with an address register, and the address register corresponds one-to-one with the level control circuit; The control module is used to provide the adjustment level to the corresponding level control circuit according to the information written into the address register based on the adjustment level.

4. The control device for intelligent passive equipment according to claim 1, characterized in that, The level control circuit includes: a control switch, a power supply terminal, and a ground terminal. The control switch includes: a control terminal, a first connection terminal, and a second connection terminal. The control unit is connected in series with the first connection terminal and the second connection terminal between the power supply terminal and the ground terminal. The control terminal is electrically connected to the control module, the first connection terminal is electrically connected to the power supply terminal, and the second connection terminal is electrically connected to the ground terminal. The control terminal is used to connect the first connection terminal and the second connection terminal when the control level is received, and to disconnect the first connection terminal and the second connection terminal when the control level is not received. The control unit is used to turn on the power supply circuit when the first connection terminal and the second connection terminal are connected, so as to electrically connect the power supply terminal to the corresponding intelligent passive device, and to turn off the power supply circuit when the first connection terminal and the second connection terminal are disconnected, so as to disconnect the power supply terminal from the corresponding intelligent passive device.

5. The control device for intelligent passive equipment according to claim 4, characterized in that, The control unit includes a relay, and the power supply circuit includes a first diode and a connector; The positive terminal of the first diode is electrically connected to the power supply terminal, the connector is connected to the negative terminal of the first diode, the induction coil of the relay is connected in series with the first connection terminal or the second connection terminal, and the induction switch of the relay is connected in series with the first diode and the connector.

6. A control system for an intelligent passive device, characterized in that, The control system of the intelligent passive device includes: a gateway, a control device for the intelligent passive device as described in any one of claims 1 to 5, and a plurality of intelligent passive devices; The gateway is communicatively connected to multiple intelligent passive devices through the control device of the intelligent passive device.

7. The control system for the intelligent passive device according to claim 6, characterized in that, The gateway includes: a main control module, a second level conversion module, and a network port module; The second level conversion module is electrically connected to the control device of the intelligent passive device and the main control module, and the network port module is electrically connected to the main control module and used to communicate with the cloud platform; The second level conversion module is used to convert the level received from the control device of the intelligent passive device and the multiple intelligent passive devices into a level that can be recognized by the main control module.

8. The control system for the intelligent passive device according to claim 7, characterized in that, The network port module includes: a network chip, a network transformer, and a network interface; The network chip is electrically connected to the main control module, the network transformer is electrically connected to the network chip, and the network interface is electrically connected to the network transformer.

9. The control system for the intelligent passive device according to claim 7, characterized in that, The second level conversion module includes: an interface unit and a second level conversion chip; The interface unit is electrically connected to the second level conversion chip, the control device of the intelligent passive device, and the multiple intelligent passive devices; the second level conversion chip is electrically connected to the main control module. The second level conversion chip is used to convert the level received from the control device of the intelligent passive device and the multiple intelligent passive devices into a level that can be recognized by the main control module.

10. The control system for the intelligent passive device according to claim 6, characterized in that, The gateway is electrically connected to the control device of the intelligent passive device and the multiple intelligent passive devices in a daisy-chain manner.

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