CROSS REFERENCE TO RELATED APPLICATIONS

This application is a U.S. National Phase of International Patent Application No. PCT/JP2019/005473 filed on Feb. 15, 2019, which claims priority benefit of Japanese Patent Application No. JP 2018-074116 filed in the Japan Patent Office on Apr. 6, 2018. Each of the above-referenced applications is hereby incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present technology relates to a wireless communication terminal. More specifically, the present technology relates to a wireless communication terminal that includes a power storage unit for charging and performs wireless communication, and a processing method in the wireless communication terminal and the power storage unit.

BACKGROUND ART

In recent years, a system for collecting information from various places and things via a wireless network is being constructed by using Internet of Things (IoT) technology. In such a system, a rechargeable battery is often used, for example, in order to stabilize supply of a power supply. For example, there has been proposed a sensing system that monitors the remaining charge amount and transmits a request to start charging in a case where the remaining charge amount is equal to or less than a predetermined value (for example, see Patent Document 1).

CITATION LIST

Patent Document

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-065640

SUMMARY OF THE INVENTION

Problems to be Solved by the Invention

In the above-described conventional technology, supply of the power supply is secured by starting charging according to the remaining charge amount. However, depending on the communication scheme, transmission is supposed to be performed a plurality of times in some cases, and if the charge amount becomes zero during that time, communication performance may not be sufficiently exhibited.

The present technology has been created in view of such a situation, and an object thereof is to ensure appropriate communication performance by switching a transmission mode according to the power amount of a power storage unit in a wireless communication terminal.

Solution to Problems

The present technology has been made in order to solve the above-described problems, and a first aspect the present technology is a wireless communication terminal and a wireless communication method of the wireless communication terminal including a communication unit configured to transmit a packet, a comparison unit configured to compare a power amount of a power storage unit with a predetermined threshold, and a control unit configured to cause the communication unit to transmit first transmission data as the packet in a first transmission mode in a case where the power amount is larger than the predetermined threshold and causes the communication unit to transmit second transmission data including a known payload as the packet in a second transmission mode in a case where the power amount is not larger than the threshold. With this arrangement, the effect of switching the transmission data and the transmission mode according to the power amount of the power storage unit is brought about.

Furthermore, in the first aspect, the first transmission mode may be a mode in which the first transmission data is transmitted a plurality of times. Therefore, in the first transmission mode, transmission performed a plurality of times brings about the effect of improving reception sensitivity.

In addition, in the first aspect, the second transmission mode may be a mode in which the second transmission data is transmitted in a smaller number of times than the plurality of times in the first transmission mode. Therefore, in the second transmission mode, the effect of reducing the number of times transmission is performed by increasing sensitivity in transmission performed in each time is brought about.

Furthermore, in the first aspect, the predetermined threshold may be a power amount required to transmit the first transmission data a plurality of times in the first transmission mode. Therefore, the effect of switching the transmission data and the transmission mode according to the power amount required for transmission in the first transmission mode is brought about.

Furthermore, in the first aspect, the comparison unit may acquire the power amount before starting a transmission sequence and compares the power amount with the predetermined threshold. Therefore, the effect of switching the transmission data and the transmission mode for each transmission sequence is brought about.

Furthermore, in the first aspect, a charging unit configured to charge the power storage unit may be further provided. Therefore, the effect of charging the power storage unit is brought about.

Furthermore, in the first aspect, the control unit may cause the communication unit to transmit the second transmission data as the packet in the second transmission mode, the second transmission data including a known payload indicating transition to a state of performing only charging of the charging unit in a case where a state transitions to a state where the power amount is larger than the predetermined threshold to a state where the power amount is not greater than the predetermined threshold. Therefore, the effect of notifying the outside of transition to the charging-only state is brought about.

Furthermore, in the first aspect, the control unit may cause the communication unit to transmit the second transmission data as the packet in the second transmission mode, the second transmission data including a known payload indicating termination of the state of performing only charging of the charging unit in a case where a state transitions to a state where the power amount is not larger than the predetermined threshold to a state where the power amount is larger than the predetermined threshold. Therefore, the effect of notifying the outside of termination of the charging-only state is brought about.

Furthermore, in the first aspect, the control unit may cause the communication unit to transmit the second transmission data as the packet in the second transmission mode, the second transmission data including a known payload according to the power amount in a case where the power amount is not larger than the predetermined threshold. Therefore, the effect of notifying the outside of the power amount of the power storage unit is brought about.

Furthermore, in the first aspect, a sensor configured to sense ambient environment data may be further provided, and the first transmission data may include the ambient environment data sensed by the sensor. Therefore, the effect of transmitting the ambient environment data in a case where the power amount is larger than the predetermined threshold is brought about.

Furthermore, in the first aspect, the communication unit may transmit the packet including an identifier of the wireless communication terminal. Therefore, the effect that a packet receiving side identifies the wireless communication terminal, which is a transmitting side, is brought about.

Effects of the Invention

According to the present technology, by switching the transmission mode according to the power amount of the power storage unit in the wireless communication terminal, it is possible to achieve an excellent effect of ensuring appropriate communication performance. Note that the effects described here are not necessarily limited, and may be any effect described in the present disclosure.

