CN203551007U - Photovoltaic wireless environmental index sensor - Google Patents

Abstract

The utility model discloses a photovoltaic wireless environmental index sensor, which comprises a photovoltaic cell board, a rechargeable lithium battery, a power management module, a power conversion module and a power protection module; Timing circuit module, microcontroller and temperature, humidity, carbon dioxide, ultraviolet rays, the power input end connection of illumination acquisition module; The data transmission interface of described ZIGBEE protocol stack wireless module and temperature, humidity, carbon dioxide, ultraviolet rays, illumination acquisition module are respectively connected with The interface of the microcontroller is connected; the output terminal of the timing circuit module is connected with the control input terminal of the microcontroller. The utility model has the characteristics of high integration, low cost and small occupied volume, and is suitable for popularization and application.

Description

A photovoltaic wireless environmental index sensor

technical field

The utility model relates to a photovoltaic wireless sensor, in particular to a photovoltaic wireless environmental index sensor integrating temperature, humidity, carbon dioxide, ultraviolet rays and illuminance.

Background technique

Factors such as temperature and humidity in the greenhouse have a direct relationship with the growth of crops. Therefore, real-time and accurate measurement and adjustment of parameters such as temperature, humidity, carbon dioxide concentration, illuminance and ultraviolet intensity in the greenhouse are very important. At present, for the monitoring of temperature, humidity, carbon dioxide, ultraviolet rays, and illuminance indicators in the above-mentioned occasions, corresponding monitoring sensors are mostly arranged at a single point, and the collected signals are transmitted to the monitoring room by wired transmission, causing the sensors to occupy a large space. Specific wiring construction is required, which increases construction difficulty and cost. Some places use wireless transmission, but they are all powered by dry batteries. Not only does it require regular battery replacement to increase labor time, but it also increases costs due to the purchase of batteries.

Utility model content

In order to overcome the defects in the prior art, the utility model provides a photovoltaic wireless environmental index sensor with high integration, no need for wiring construction, and self-sufficient energy function.

Its technical scheme is as follows:

A photovoltaic wireless environmental index sensor, comprising a photovoltaic battery board, a rechargeable lithium battery, a power management module, a power conversion module and a power protection module; the photovoltaic battery board and the rechargeable lithium battery are respectively connected to the input interface of the power management module, the The output end of the power management module is connected with the input end of the power conversion module, the input end of the power protection module is connected with the photovoltaic panel, and the output end is connected with the power conversion module and the microcontroller; the output end of the power conversion module Connect with the power supply input of the ZIGBEE protocol stack wireless module, timing circuit module, microcontroller and temperature, humidity, carbon dioxide, ultraviolet rays, and illuminance acquisition modules respectively; The data transmission interface of the acquisition module is respectively connected with the interface of the microcontroller; the output terminal of the timing circuit module is connected with the control input terminal of the microcontroller.

Further preferably, the temperature, humidity, carbon dioxide, ultraviolet, and illumination acquisition modules include: temperature probes, humidity probes, carbon dioxide probes, ultraviolet probes, and illumination probes; the temperature probes, humidity probes, carbon dioxide probes, and signal output terminals are connected to the input The signal input end of the signal selection switch is connected; the signal output end of the ultraviolet probe and the illuminance probe are connected with the input end of the voltage dividing circuit module; the output end of the voltage dividing circuit module is connected with the signal input end of the input signal selection switch; The signal output end of the input signal selection switch is amplified and filtered by the operational amplifier filter module and connected to the input end of the data register; the input end of the data register is connected to the output end of the self-checking module; the control input of the input signal selection switch The end is connected with the control output end of the switch controller.

The beneficial effects of the utility model:

The utility model realizes wireless monitoring of vegetable greenhouses and greenhouses. Since it does not require construction wiring and has a self-sufficient energy function, it provides convenience for large-scale and high-density arrangement of temperature, humidity, carbon dioxide, ultraviolet, and illuminance sensors. Vegetable greenhouses and greenhouses vary in size and are difficult to construct. At the same time, the utility model integrates sensors for temperature, humidity, carbon dioxide, ultraviolet rays, and illuminance, and has high integration, low cost, and small occupied volume.

Description of drawings

Fig. 1 is the structural representation of the utility model photovoltaic wireless environmental index sensor;

Fig. 2 is a schematic block diagram of the circuit of the temperature, humidity, carbon dioxide, ultraviolet, and illuminance acquisition module of the utility model.

Detailed ways

The technical solution of the present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figure 1, a photovoltaic wireless environmental index sensor includes a photovoltaic panel, a rechargeable lithium battery, a power management module, a power conversion module, and a power protection module; the photovoltaic panel and the rechargeable lithium battery are respectively connected to the input interfaces of the power management module connected, the output end of the power management module is connected to the input end of the power conversion module, the input end of the power protection module is connected to the photovoltaic panel, and the output end is connected to the power conversion module and the microcontroller; the power supply The output end of the conversion module is respectively connected with the power input end of the ZIGBEE protocol stack wireless module, timing circuit module, microcontroller and temperature, humidity, carbon dioxide, ultraviolet rays, and illumination acquisition module; the ZIGBEE protocol stack wireless module is connected with temperature, humidity, carbon dioxide The data transmission interfaces of the , ultraviolet and illuminance acquisition modules are respectively connected to the interface of the micro-controller; the output end of the timing circuit module is connected to the control input end of the micro-controller.

With reference to Fig. 2, described temperature, humidity, carbon dioxide, ultraviolet ray, illuminance acquisition module comprises: temperature probe, humidity probe, carbon dioxide probe, ultraviolet ray probe, illuminance probe; Described temperature probe, humidity probe, carbon dioxide probe, signal output terminal are connected with The signal input end of the input signal selection switch is connected; the signal output end of the ultraviolet probe and the illuminance probe are connected with the input end of the voltage divider circuit module; the output end of the voltage divider circuit module is connected with the signal input end of the input signal selection switch The signal output end of the input signal selection switch is amplified and filtered by the operational amplifier filter module and connected to the data register input end; the input end of the data register is connected to the output end of the self-checking module; the control of the input signal selection switch The input terminal is connected with the control output terminal of the switch controller.

The above is only a preferred embodiment of the utility model, and the scope of protection of the utility model is not limited thereto. Anyone familiar with the technical field can obviously obtain the technology within the technical scope disclosed in the utility model. Simple changes or equivalent replacements of the schemes all fall within the protection scope of the present utility model.

Claims (2)

1. A photovoltaic wireless environmental index sensor, comprising a photovoltaic panel, a rechargeable lithium battery, a power management module, a power conversion module and a power protection module; it is characterized in that the photovoltaic panel and the rechargeable lithium battery are respectively connected to the power management module The input interface is connected, the output end of the power management module is connected with the input end of the power conversion module, the input end of the power protection module is connected with the photovoltaic panel, and the output end is connected with the power conversion module and the microcontroller; The output end of the power conversion module is connected with the power input end of the ZIGBEE protocol stack wireless module, timing circuit module, microcontroller, and temperature, humidity, carbon dioxide, ultraviolet rays, and illumination acquisition module respectively; the ZIGBEE protocol stack wireless module is connected with temperature, humidity The data transmission interfaces of the acquisition modules of carbon dioxide, ultraviolet rays and illuminance are respectively connected to the interface of the microcontroller; the output terminal of the timing circuit module is connected to the control input terminal of the microcontroller. 2. The photovoltaic wireless environmental index sensor according to claim 1, said temperature, humidity, carbon dioxide, ultraviolet rays, and illumination acquisition modules comprising: temperature probes, humidity probes, carbon dioxide probes, ultraviolet probes, illumination probes; said temperature probes, The humidity probe, the carbon dioxide probe, and the signal output end are respectively connected to the signal input end of the input signal selection switch; the signal output ends of the ultraviolet probe and the illuminance probe are connected to the input end of the voltage dividing circuit module; the output of the voltage dividing circuit module end is connected with the signal input end of the input signal selection switch; the signal output end of the input signal selection switch is amplified and filtered by the operational amplifier filter module and connected with the input end of the data register; the input end of the data register is connected with the self-checking module The output terminal of the input signal selection switch is connected to the control input terminal of the switch controller and the control output terminal of the switch controller is connected.

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