Smart Ticketing System for Public Transport Vehicles

Recent Growth in technologies has taken drastic improvements in all fields especially public welfare. Soon transport systems with demanding technologies like frequency Identification Devices (RFID), GSM, and face recognition will gain the spotlight. The RFID concept is applied in a public transport identification card which is a reliable system, automatically detects the passenger, and the camera will recognize the passenger’s face and debit the fare following the distance traveled. A feedback message is forwarded to the corresponding person’s mobile, as a sign of good security. The security system is equipped with a GSM modem.IR sensor will count the persons entering and exiting the bus.

Design of Software-Defined Radio-Based Adaptable Packet Communication System for Small Satellites

Software-defined radio (SDR) devices have made a massive contribution to communication systems by reducing the cost and development time for radio frequency (RF) designs. SDRs opened the gate to programmers and enabled them to increase the capabilities of these easily manipulated systems. The next step is to upgrade the reconfigurability into adaptability, which is the focus of this paper. This research contributes to improving SDR-based systems by designing an adaptable packet communication transmitter and receiver that can utilize the communication window of CubeSats and small satellites. According to the feedback from the receiver, the transmitter modifies the characteristics of the signal. Theoretically, the system can adopt many modes, but for simplicity and to prove the concept, here, the changes are limited to three data rates of the Gaussian minimum shift keying (GMSK) modulation scheme, i.e., 2400 bps GMSK, 4800 bps GMSK and 9600 bps GMSK, which are the most popular in amateur small satellites. The system program was developed using GNU Radio Companion (GRC) software and Python scripts. With the help of GRC software, the design was simulated and its behavior in simulated conditions observed. The transmitter packetizes the data into AX.25 packets and transmits them in patches. Between these patches, it sends signaling packets. The patch size is preselected. Alternatively, the receiver extracts the data and saves it in a dedicated file. It directly replies with a feedback message whenever it gets the signaling packets. Based on the content of the feedback message, the characteristics of the transmitted signal are altered. The packet rate and the actual useful data rate are measured and compared with the selected data rate, and the packet success rate of the system operating at a fixed data rate is also measured while simulating channel noise to achieve the desired Signal-to-Noise Ratio (SNR).

A Novel LT Scheme without Feedback Messages for IoT of Smart City Scenarios

For IoTs of smart city scenarios always with the low cost, low power consumption, and high transmission delay properties, the traditional protocols based on feedback messages, e.g., the Automatic Repeat reQuest (ARQ) schemes, would dramatically affect the transmission efficiency. Therefore, the LT codes with only one feedback message in each entire coding process can be used to substitute the traditional protocols. As in many IoTs of smart city scenarios, the data must have both high transmission efficiency and timeliness requirements; thus, the negative effect of only the feedback message in each entire coding process cannot be neglected in such transmission environments. To enhance the transmission efficiency of such ensembles, a novel LT scheme without feedback messages is proposed in this paper. By presenting the definitions of optimal decoding overhead and recovery ratio per symbol, the optimal decoding overhead of LT codes can be found directly, then the encoding overhead of the encoder can be predesigned also. For this reason, the feedback messages in LT schemes can be removed. By using the proposed LT scheme, the transmission efficiency of IoT of smart city scenarios can be enhanced.

The effectiveness of Social Media Instagram as a Promotion of Agricultural product of fruits. (case :Instagram TaniHub Indonesia, Pasar Minggu, Jakarta Selatan)

Agriculture produces processed product which is perishable, so that the agricultural product should be distributed immediately. Processed product can be promoted to attract consumers to buy the product. One of the media that can be used to promote processed agricultural product is social media. Social media is needed to ease the marketing activity on the product. Social media is viral and can be delivered directly and personally to the consumer. Indicators are used to know the effectiveness of the social media as promotion media with AIDA concept. The results showed that promotion through Instagram has not been effective in the stages of attention (attention), interest (interest), desire (desire), and action (action). This study also explains that there is a relationship between the characteristics of gender followers and the level of social media exposure to the frequency of messages. In addition, there is also a relationship between the frequency of message feedback, message attractiveness, and intelligence in delivering messages with the interest stage.

Providing feedback to service customers

Purpose In services, customers’ successful performance of expected roles is critical to ensuring successful service outcomes. To help customers perform their roles better, service providers offer them feedback on their performance. To improve the design of customer feedback that contains both positive and negative messages, the purpose of this paper is to examine the order and the repetition effect of feedback message types on customer feedback satisfaction, motivation, and compliance intention, focusing on the moderating effect of customer involvement level. This paper also examines whether feedback satisfaction and motivation mediate the moderation effect of the order or repetition of feedback message type and customer involvement level on compliance intention. Design/methodology/approach This study employs two between-subject quasi-experimental designs: 2 (feedback message order: positive message first vs negative message first) × 2 (involvement level: high vs low) and a 2 (repeated feedback type: positive vs negative) × 2 (involvement level: high vs low). Data collection occurred through an online survey using eight health checkup scenarios. Hypotheses were tested by using MANOVA and PROCESS. Findings The customer involvement level moderated the effect of the presentation order of feedback message type on customer responses. With highly involved customers, offering positive feedback initially produced responses that were more favorable. With customers with low involvement, the order did not matter. The effects of feedback satisfaction and motivation as mediators in the effect of order on compliance intention were significant only with highly involved customers. The mediation effect of motivation was much stronger than that of feedback satisfaction. The repetition of a particular feedback type took effect only with customers with low-involvement level. Compared to the no-repetition condition (positive-negative), when positive feedback was repeated (positive-negative-positive), motivation increased. Compared to the no-repetition condition (negative-positive), when negative feedback was repeated (negative-positive-negative), feedback satisfaction and compliance intention decreased. In terms of mediating effect, only feedback satisfaction was a meaningful mediator and only when negative feedback was repeated to low-involvement customers. Originality/value This study contributes to research by extending feedback studies in services to include a consideration of the order and repetition of feedback message types as design variables; it contributes practically by suggesting how to design feedback for better customer responses such as feedback satisfaction, motivation, and compliance intention.

Delivering Feedback: Supervisors’ Source Credibility and Communication Competence

This study investigated how perceptions of supervisor communication competence and source credibility were affected by the valence and synchronicity of a feedback message and the channel used to deliver the feedback message. Results indicated that those receiving feedback preferred phone calls rather than text messages as a channel for managers to deliver feedback. Also, supervisors delivering positive feedback were identified as more positive in general than those delivering negative feedback. Further results and implications are discussed.